25-7a=-4(a-1)

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Solution for 25-7a=-4(a-1) equation:


25-7a=-4(a-1)

We simplify the equation to the form, which is simple to understand 
25-7a=-4(a-1)

Reorder the terms in parentheses
25-7a=+(-4a+4)

Remove unnecessary parentheses
+25-7a=-4a+4

We move all terms containing a to the left and all other terms to the right. 
-7a+4a=+4-25

We simplify left and right side of the equation. 
-3a=-21

We divide both sides of the equation by -3 to get a. 
a=7

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