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-4x+7=9x+2
We move all terms to the left:
-4x+7-(9x+2)=0
We get rid of parentheses
-4x-9x-2+7=0
We add all the numbers together, and all the variables
-13x+5=0
We move all terms containing x to the left, all other terms to the right
-13x=-5
x=-5/-13
x=5/13
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