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a+2+2a+5a=19+a+5
We simplify the equation to the form, which is simple to understand
a+2+2a+5a=19+a+5
We move all terms containing a to the left and all other terms to the right.
+1a+2a+5a-1a=+19+5-2
We simplify left and right side of the equation.
+7a=+22
We divide both sides of the equation by 7 to get a.
a=3.1428571428571
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