3(x+10)=-21

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Solution for 3(x+10)=-21 equation: 



3(x+10)=-21

We move all terms to the left:

3(x+10)-(-21)=0

We add all the numbers together, and all the variables

3(x+10)+21=0

We multiply parentheses

3x+30+21=0

We add all the numbers together, and all the variables

3x+51=0

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

3x=-51

x=-51/3

x=-17

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