How do you solve 2s+s+12=132?

3 Answers
Mar 6, 2018

s=40

Explanation:

2s+s+12=132

3s+12=132

3s=120

s=40

Mar 6, 2018

Simplify by moving all like terms to one side:

2s+s=132-12

3s=120

s=40

s=40

Explanation:

Combine like terms:

2s + s = 3s

Changing the equation to 3s+12=132

Now you work backwards using "PEMDAS"
"(Parenthesis, Exponent, Multiply, Divide, add then subtract.)"

Which means subtract 12 from 132 since it would be the last step if we were using PEMDAS.

132-12= 120

3s= 120

and using division to isolate and get one s, you get 40.