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3x+120-0.8x=-1.75+1.30x
We simplify the equation to the form, which is simple to understand
3x+120-0.8x=-1.75+1.30x
We move all terms containing x to the left and all other terms to the right.
+3x-0.8x-1.3x=-1.75-120
We simplify left and right side of the equation.
+ 0.9x=-121.75
We divide both sides of the equation by 0.9 to get x.
x=-135.277777778
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