9x-(4x+3)=7x-21

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Solution for 9x-(4x+3)=7x-21 equation:



9x-(4x+3)=7x-21
We move all terms to the left:
9x-(4x+3)-(7x-21)=0
We get rid of parentheses
9x-4x-7x-3+21=0
We add all the numbers together, and all the variables
-2x+18=0
We move all terms containing x to the left, all other terms to the right
-2x=-18
x=-18/-2
x=+9

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