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145=-6x-7x+2
We move all terms to the left:
145-(-6x-7x+2)=0
We add all the numbers together, and all the variables
-(-13x+2)+145=0
We get rid of parentheses
13x-2+145=0
We add all the numbers together, and all the variables
13x+143=0
We move all terms containing x to the left, all other terms to the right
13x=-143
x=-143/13
x=-11
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