7(t+20)+4t=2t-4

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Solution for 7(t+20)+4t=2t-4 equation: 



7(t+20)+4t=2t-4

We move all terms to the left:

7(t+20)+4t-(2t-4)=0

We add all the numbers together, and all the variables

4t+7(t+20)-(2t-4)=0

We multiply parentheses

4t+7t-(2t-4)+140=0

We get rid of parentheses

4t+7t-2t+4+140=0

We add all the numbers together, and all the variables

9t+144=0

We move all terms containing t to the left, all other terms to the right

9t=-144

t=-144/9

t=-16

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