Class 7 Exam  >  Class 7 Questions  >  What is the value of the expression ax + by +... Start Learning for Free
What is the value of the expression ax + by + cz when x = 1, y = -1, z = 2, a = -2, b = 1, and c = -2?
  • a)
    -3
  • b)
    -5
  • c)
    -7
  • d)
    -9
Correct answer is option 'C'. Can you explain this answer?
Most Upvoted Answer
What is the value of the expression ax + by + cz when x = 1, y = -1, z...
Understanding the Expression
To find the value of the expression ax + by + cz, we will substitute the given values for a, b, c, x, y, and z.
Given Values
- a = -2
- b = 1
- c = -2
- x = 1
- y = -1
- z = 2
Substituting the Values
Now, we substitute these values into the expression:
- ax = (-2)(1) = -2
- by = (1)(-1) = -1
- cz = (-2)(2) = -4
Calculating the Expression
Now, add these results together:
- ax + by + cz = -2 + (-1) + (-4)
Step-by-Step Calculation
- First, calculate -2 + (-1):
- -2 - 1 = -3
- Next, add -4 to the result:
- -3 + (-4) = -7
Final Value
So, the value of the expression ax + by + cz is -7.
Thus, the correct answer is option 'd)' -7.
Free Test
Community Answer
What is the value of the expression ax + by + cz when x = 1, y = -1, z...
The value of the expression ax + by + cz is -7.
Explore Courses for Class 7 exam

Top Courses for Class 7

What is the value of the expression ax + by + cz when x = 1, y = -1, z = 2, a = -2, b = 1, and c = -2?a)-3b)-5c)-7d)-9Correct answer is option 'C'. Can you explain this answer?
Question Description
What is the value of the expression ax + by + cz when x = 1, y = -1, z = 2, a = -2, b = 1, and c = -2?a)-3b)-5c)-7d)-9Correct answer is option 'C'. Can you explain this answer? for Class 7 2025 is part of Class 7 preparation. The Question and answers have been prepared according to the Class 7 exam syllabus. Information about What is the value of the expression ax + by + cz when x = 1, y = -1, z = 2, a = -2, b = 1, and c = -2?a)-3b)-5c)-7d)-9Correct answer is option 'C'. Can you explain this answer? covers all topics & solutions for Class 7 2025 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for What is the value of the expression ax + by + cz when x = 1, y = -1, z = 2, a = -2, b = 1, and c = -2?a)-3b)-5c)-7d)-9Correct answer is option 'C'. Can you explain this answer?.
Solutions for What is the value of the expression ax + by + cz when x = 1, y = -1, z = 2, a = -2, b = 1, and c = -2?a)-3b)-5c)-7d)-9Correct answer is option 'C'. Can you explain this answer? in English & in Hindi are available as part of our courses for Class 7. Download more important topics, notes, lectures and mock test series for Class 7 Exam by signing up for free.
Here you can find the meaning of What is the value of the expression ax + by + cz when x = 1, y = -1, z = 2, a = -2, b = 1, and c = -2?a)-3b)-5c)-7d)-9Correct answer is option 'C'. Can you explain this answer? defined & explained in the simplest way possible. Besides giving the explanation of What is the value of the expression ax + by + cz when x = 1, y = -1, z = 2, a = -2, b = 1, and c = -2?a)-3b)-5c)-7d)-9Correct answer is option 'C'. Can you explain this answer?, a detailed solution for What is the value of the expression ax + by + cz when x = 1, y = -1, z = 2, a = -2, b = 1, and c = -2?a)-3b)-5c)-7d)-9Correct answer is option 'C'. Can you explain this answer? has been provided alongside types of What is the value of the expression ax + by + cz when x = 1, y = -1, z = 2, a = -2, b = 1, and c = -2?a)-3b)-5c)-7d)-9Correct answer is option 'C'. Can you explain this answer? theory, EduRev gives you an ample number of questions to practice What is the value of the expression ax + by + cz when x = 1, y = -1, z = 2, a = -2, b = 1, and c = -2?a)-3b)-5c)-7d)-9Correct answer is option 'C'. Can you explain this answer? tests, examples and also practice Class 7 tests.
Explore Courses for Class 7 exam

Top Courses for Class 7

Explore Courses
Signup for Free!
Signup to see your scores go up within 7 days! Learn & Practice with 1000+ FREE Notes, Videos & Tests.
10M+ students study on EduRev