Answer:
8x+16
7x-9
_____
15x+7
Step-by-step explanation:
Add or subtract like terms
Answer:x+-3
Step-by-step explanation:
-6x+21-3
-6x=18
Hi there!

f(x) = 2x + 6
Differentiating 2x = 2 (Power rule, dy/dx xⁿ = nxⁿ⁻¹)
Differentiating a constant always equals 0.
Thus:
f'(x) = 2
Answer:
x=-4
Step-by-step explanation:
x+(-3)=-7
x-3=-7
x=-7+3=3-7
x=-4
so what is exactly the question