Question

If a=3x-7x -8 and b=x -5x-4 find 2a+b

Answer 1

Answer:

-12x-20

Step-by-step explanation:

a= 3x-7x-8 and b= x-5x-4

therefore 2a+b= 2[3x-7x-8]+[x-5x-5]

= 6x-14x-16+x-5x-5

= -12-20

Answer 2

The value of 2a+b is "-12x-20".

Step-by-step explanation:

$The \ given \ values \ are:\\a=3x-7x-8\\a=-4x-8\\and,\\b=x-5x-4\\b=-4x-4\\Now,\\2a=2(-4x-8)\\2a=-8x-16\\and,\\2a+b=(-8x-16)+(-4x-4)\\2a+b=-8x-16-4x-4\\2a+b=-12x-20$

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https://brainly.in/question/14022926