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+2x-3x=+8+5
We move all terms to the left:
+2x-3x-(+8+5)=0
We add all the numbers together, and all the variables
2x-3x-13=0
We add all the numbers together, and all the variables
-1x-13=0
We move all terms containing x to the left, all other terms to the right
-x=13
x=13/-1
x=-13
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