10x+21-7=10+3x

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Solution for 10x+21-7=10+3x equation: 



10x+21-7=10+3x

We move all terms to the left:

10x+21-7-(10+3x)=0

We add all the numbers together, and all the variables

10x-(3x+10)+21-7=0

We add all the numbers together, and all the variables

10x-(3x+10)+14=0

We get rid of parentheses

10x-3x-10+14=0

We add all the numbers together, and all the variables

7x+4=0

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

7x=-4

x=-4/7

x=-4/7

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