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x/4-21=21
We simplify the equation to the form, which is simple to understand
x/4-21=21
Simplifying:
+ 0.25x-21=21
We move all terms containing x to the left and all other terms to the right.
+ 0.25x=+21+21
We simplify left and right side of the equation.
+ 0.25x=+42
We divide both sides of the equation by 0.25 to get x.
x=168
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