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7/10-a=1/2
We simplify the equation to the form, which is simple to understand
7/10-a=1/2
Simplifying:
+ 0.7-a=1/2
Simplifying:
+ 0.7-a=0.5
We move all terms containing a to the left and all other terms to the right.
-1a=0.5-0.7
We simplify left and right side of the equation.
-1a=-0.2
We divide both sides of the equation by -1 to get a.
a=0.2
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