Question

I need help 9th grade math

Answer 1

g(x) be n

Now

• n+6x+2=10x+7

Interchange x

• n+2=10x-6x+7
• n+2=4x+7
• n=4x+7-2
• n=4x+5

Option D

Answer 2

(f + g)(x) is another way of writing f(x) + g(x).

Given that

(f + g)(x) = 10x + 7

f(x) = 6x + 2

it follows that

g(x) = (f + g)(x) - f(x)

g(x) = (10x + 7) - (6x + 2)

g(x) = 4x + 5