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The system of equations above has solution (x,y). What is the value of x?
Correct answer is '5.25'. Can you explain this answer?
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The system of equations above has solution (x,y). What is the value of...
Use substitution to create a one-variable equation that can be solved for x. The second equation gives that y = 2x. Substituting 2x for y in the first equation gives 
Dividing both sides of this equation by 1/2 yields (2x + 2x )= 21 . Combining like terms results in 4x = 21. Finally, dividing both sides by 4 gives x = 21/4 = 5.25. Either 21/4 or 5.25 can be gridded as the correct answer.
Dividing both sides of this equation by 1/2 yields (2x + 2x )= 21 . Combining like terms results in 4x = 21. Finally, dividing both sides by 4 gives x = 21/4 = 5.25. Either 21/4 or 5.25 can be gridded as the correct answer.Most Upvoted Answer
The system of equations above has solution (x,y). What is the value of...
Use substitution to create a one-variable equation that can be solved for x. The second equation gives that y = 2x. Substituting 2x for y in the first equation gives Dividing both sides of this equation by 1/2 yields (2x + 2x )= 21 . Combining like terms results in 4x = 21. Finally, dividing both sides by 4 gives x = 21/4 = 5.25. Either 21/4 or 5.25 can be gridded as the correct answer.
Dividing both sides of this equation by 1/2 yields (2x + 2x )= 21 . Combining like terms results in 4x = 21. Finally, dividing both sides by 4 gives x = 21/4 = 5.25. Either 21/4 or 5.25 can be gridded as the correct answer.
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The system of equations above has solution (x,y). What is the value of x?Correct answer is '5.25'. Can you explain this answer?
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