4(t+-9)=-20

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Solution for 4(t+-9)=-20 equation: 



4(t+-9)=-20

We move all terms to the left:

4(t+-9)-(-20)=0

We add all the numbers together, and all the variables

4(t-9)-(-20)=0

We add all the numbers together, and all the variables

4(t-9)+20=0

We multiply parentheses

4t-36+20=0

We add all the numbers together, and all the variables

4t-16=0

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

4t=16

t=16/4

t=4

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