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21/70=x/100
We simplify the equation to the form, which is simple to understand
21/70=x/100
Simplifying:
+ 0.3=x/100
Simplifying:
+ 0.3=0.01x
We move all terms containing x to the left and all other terms to the right.
-0.01x=-0.3
We simplify left and right side of the equation.
-0.01x=-0.3
We divide both sides of the equation by -00.01 to get x.
x=30
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