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0.4x+18=+13
We move all terms to the left:
0.4x+18-(+13)=0
We add all the numbers together, and all the variables
0.4x+18-13=0
We add all the numbers together, and all the variables
0.4x+5=0
We move all terms containing x to the left, all other terms to the right
0.4x=-5
x=-5/0.4
x=-12+0.2/0.4
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