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0.3x-0.7x-7=1
We simplify the equation to the form, which is simple to understand
0.3x-0.7x-7=1
We move all terms containing x to the left and all other terms to the right.
+ 0.3x-0.7x=+1+7
We simplify left and right side of the equation.
-0.4x=+8
We divide both sides of the equation by -0.4 to get x.
x=-20
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