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8x-5y_9 and 3x-2y_4 solve by cross multiplication?
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8x-5y_9 and 3x-2y_4 solve by cross multiplication?
By elimination method :

8x+5y = 9---------(1) x2

3x+2y = 4 -----(2). x5

we get,
16x+10y = 18
15x+10y= 20

subtracting both the equations we get;

x = -2

Putting the value of x in (1)...
8x-2 +5y = 9

-16+5y = 9

5y = 9+16

5y = 25

y = 25/5

y = 5
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8x-5y_9 and 3x-2y_4 solve by cross multiplication?
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