10x+25-x=21-7x

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Solution for 10x+25-x=21-7x equation: 



10x+25-x=21-7x

We move all terms to the left:

10x+25-x-(21-7x)=0

We add all the numbers together, and all the variables

10x-x-(-7x+21)+25=0

We add all the numbers together, and all the variables

9x-(-7x+21)+25=0

We get rid of parentheses

9x+7x-21+25=0

We add all the numbers together, and all the variables

16x+4=0

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

16x=-4

x=-4/16

x=-1/4

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