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0.15x+0.05(14-x)=0.10(-7)
We move all terms to the left:
0.15x+0.05(14-x)-(0.10(-7))=0
We add all the numbers together, and all the variables
0.15x+0.05(-1x+14)-(0.10(-7))=0
We add all the numbers together, and all the variables
0.15x+0.05(-1x+14)+0.7=0
We multiply parentheses
0.15x-0.05x+0.7+0.7=0
We add all the numbers together, and all the variables
0.1x+1.4=0
We move all terms containing x to the left, all other terms to the right
0.1x=-1.4
x=-1.4/0.1
x=-13+0.1/0.1
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