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2.9(x+8.3)=7.8x-4.35
We move all terms to the left:
2.9(x+8.3)-(7.8x-4.35)=0
We multiply parentheses
2.9x-(7.8x-4.35)+24.07=0
We get rid of parentheses
2.9x-7.8x+4.35+24.07=0
We add all the numbers together, and all the variables
-4.9x+28.42=0
We move all terms containing x to the left, all other terms to the right
-4.9x=-28.42
x=-28.42/-4.9
x=5+2.0416666666667/2.5520833333333
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