7x+5x-7=21+10x

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Solution for 7x+5x-7=21+10x equation:



7x+5x-7=21+10x
We move all terms to the left:
7x+5x-7-(21+10x)=0
We add all the numbers together, and all the variables
7x+5x-(10x+21)-7=0
We add all the numbers together, and all the variables
12x-(10x+21)-7=0
We get rid of parentheses
12x-10x-21-7=0
We add all the numbers together, and all the variables
2x-28=0
We move all terms containing x to the left, all other terms to the right
2x=28
x=28/2
x=14

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