Question

i need help 9th grade math

Answer 1

Answer:

8x+7

Explanation:

f(x) = x + 3

g(x) = 7x + 4

==========

• (f+g)(x)

• f(x) + g(x)

• x + 3 + 7x + 4

• 8x + 7

Answer 2

• (f+g)(x)
• f(x)+g(x)

Put values

• x+3+7x+4
• 8x+7

Done!