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x/4=-21+x
We simplify the equation to the form, which is simple to understand
x/4=-21+x
We move all terms containing x to the left and all other terms to the right.
+ 0.25x-1x=-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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