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5.3=1.2x+3.4x-8.7
We move all terms to the left:
5.3-(1.2x+3.4x-8.7)=0
We add all the numbers together, and all the variables
-(4.6x-8.7)+5.3=0
We get rid of parentheses
-4.6x+8.7+5.3=0
We add all the numbers together, and all the variables
-4.6x+14=0
We move all terms containing x to the left, all other terms to the right
-4.6x=-14
x=-14/-4.6
x=3+0.2/4.6
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