10x-(3x+30)=40

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Solution for 10x-(3x+30)=40 equation: 



10x-(3x+30)=40

We move all terms to the left:

10x-(3x+30)-(40)=0

We get rid of parentheses

10x-3x-30-40=0

We add all the numbers together, and all the variables

7x-70=0

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

7x=70

x=70/7

x=10

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