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3x+.5-13x=4-20x
We move all terms to the left:
3x+.5-13x-(4-20x)=0
We add all the numbers together, and all the variables
3x-13x-(-20x+4)+.5=0
We add all the numbers together, and all the variables
-10x-(-20x+4)+0.5=0
We get rid of parentheses
-10x+20x-4+0.5=0
We add all the numbers together, and all the variables
10x-3.5=0
We move all terms containing x to the left, all other terms to the right
10x=3.5
x=3.5/10
x=2.33333333333/6.66666666667
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