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100+.40x=75+.70
We move all terms to the left:
100+.40x-(75+.70)=0
We add all the numbers together, and all the variables
.40x+100-(75.7)=0
We add all the numbers together, and all the variables
.40x+24.3=0
We move all terms containing x to the left, all other terms to the right
.40x=-24.3
x=-24.3/.40
x=-60+0.3/.40
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