30x+40=130x-160

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Solution for 30x+40=130x-160 equation: 



30x+40=130x-160

We move all terms to the left:

30x+40-(130x-160)=0

We get rid of parentheses

30x-130x+160+40=0

We add all the numbers together, and all the variables

-100x+200=0

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

-100x=-200

x=-200/-100

x=+2

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