10x-30=8x+12

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Solution for 10x-30=8x+12 equation: 



10x-30=8x+12

We move all terms to the left:

10x-30-(8x+12)=0

We get rid of parentheses

10x-8x-12-30=0

We add all the numbers together, and all the variables

2x-42=0

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

2x=42

x=42/2

x=21

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