Answer:
x=0
Step-by-step explanation:
- 7(x + 4) - 4= - 32
Add 4 to each side
- 7(x + 4) - 4+4= - 32+4
- 7(x + 4) = - 28
Divide by -7
- 7(x + 4) /-7= - 28/-7
x+4 = 4
Subtract 4 from each side
x+4-4 = 4-4
x=0
So in order to solve this we are going to cross multiply:
a 4
--- = --
15 5 so what were are going to do is we will take a and multiply it with 5 and we will take 15 and multiply it with 4. Now this gives us 5a and 60 so our new equation is:
5a = 60 now we are going to get our variable alone by dividing it by 5 and what we do on one side of the equation we do on the other:
5a = 60
÷5 ÷5 this gives us a=12
hope this answer helps
Step-by-step explanation:

1÷4a+20=60
1÷4a=4
a=1/160
Answer:
7.5
Step-by-step explanation:
7.2 + 8.5 + 7.0 + 8.1 + 6.7 = 37.5
37.5÷5 = 7.5
The first step for solving this expression is to write the division as a fraction.

× m³
Factor out 2 from the numerator (top) of the fraction.

× m³
Reduce the fraction with 2.
(-2

+

- 7

)m³
Lastly,, distribute m³ through the parenthesis to get your final answer.
-2

+

- 7

Let me know if you have any further questions.
:)