144=-3x+2(-7+21)

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Solution for 144=-3x+2(-7+21) equation: 



144=-3x+2(-7+21)

We move all terms to the left:

144-(-3x+2(-7+21))=0

We add all the numbers together, and all the variables

-(-3x+214)+144=0

We get rid of parentheses

3x-214+144=0

We add all the numbers together, and all the variables

3x-70=0

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

3x=70

x=70/3

x=23+1/3

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