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-x+x/4=21
We simplify the equation to the form, which is simple to understand
-x+x/4=21
Simplifying:
-x + 0.25x=21
We move all terms containing x to the left and all other terms to the right.
-1x + 0.25x=+21
We simplify left and right side of the equation.
-0.75x=+21
We divide both sides of the equation by -0.75 to get x.
x=-28
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