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-5.2x-57.9=15.9+1.8x
We move all terms to the left:
-5.2x-57.9-(15.9+1.8x)=0
We add all the numbers together, and all the variables
-5.2x-(1.8x+15.9)-57.9=0
We get rid of parentheses
-5.2x-1.8x-15.9-57.9=0
We add all the numbers together, and all the variables
-7x-73.8=0
We move all terms containing x to the left, all other terms to the right
-7x=73.8
x=73.8/-7
x=-10+2.1111111111111/3.8888888888889
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