30=-3(n-7)

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Solution for 30=-3(n-7) equation:


30=-3(n-7)

We simplify the equation to the form, which is simple to understand 
30=-3(n-7)

Reorder the terms in parentheses
30=+(-3n+21)

Remove unnecessary parentheses
+30=-3n+21

We move all terms containing n to the left and all other terms to the right. 
+3n=+21-30

We simplify left and right side of the equation. 
+3n=-9

We divide both sides of the equation by 03 to get n. 
n=-3

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