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3-a/7=(-2)
We simplify the equation to the form, which is simple to understand
3-a/7=(-2)
Simplifying:
3-0.142857142857a=(-2)
Remove unnecessary parentheses
3-0.142857142857a=-2
We move all terms containing a to the left and all other terms to the right.
-0.142857142857a=-2-3
We simplify left and right side of the equation.
-0.142857142857a=-5
We divide both sides of the equation by -0.142857142857 to get a.
a=35
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