Question

-2(x-4)+5x=3(x+7)-2x by elimination method ​

Answer 1

${\underline{\underline{\huge{\mathfrak{\green{Answer:-}}}}}}$

Hey Mate!!

-2(x - 4) + 5x = 3(x + 7) - 2x

=> -2x + 8 + 5x = 3x + 21 - 2x

=> 8 + 3x = x + 21

=> 3x - x = 21 - 8

=> 2x = 13

=> x = 13/2 or 6.5

Hope it helps...✌✌

Answer 2

The correct answer is "x = 13/2".

Step-by-step explanation:

$The \ given \ expression \ is:\\\\-2(x-4)+5x=3(x+7)-2x\\\\On \ evaluating \ the \ above \ expression,we \ get\\\\-2x+8+5x=3x+21-2x\\\\8+3x=x+21\\\\On \ subtracting \ "x" \ from \ both \ sides,we \ get\\\\8+3x-x=x+21-x\\\\8+2x=21\\\\On \ subtracting \ "8" \ from \ both \ sides,we \ get\\\\8+2x-8=21-8\\\\2x=13\\\\x=\frac{13}{2}$

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