12 divides by 4 would be 3
So 3x
Plus the exponents so
The answer is 3x exponent 7
So 3 times x+3 is -18 so
3(x+3)=-18
so distribute
3x-9=-18
add 9 to both sides
3x=-27
divide both sides by 3
x=-9
Answer:
45
Step-by-step explanation:
Answer:

Step-by-step explanation:

Distribute 2 through the parentheses

Collect like terms

Move 16 to right hand side and change it's sign

Add the numbers: 6 and 16

Divide both sides by 2

Calculate

Hope I helped !
Best regards! :D