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0.4(x-7)=18.
We move all terms to the left:
0.4(x-7)-(18.)=0
We add all the numbers together, and all the variables
0.4(x-7)-18=0
We multiply parentheses
0.4x-2.8-18=0
We add all the numbers together, and all the variables
0.4x-20.8=0
We move all terms containing x to the left, all other terms to the right
0.4x=20.8
x=20.8/0.4
x=52
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