-3(1-7n)=-31-7n

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Solution for -3(1-7n)=-31-7n equation:


Simplifying
-3(1 + -7n) = -31 + -7n
(1 * -3 + -7n * -3) = -31 + -7n
(-3 + 21n) = -31 + -7n

Solving
-3 + 21n = -31 + -7n

Solving for variable 'n'.

Move all terms containing n to the left, all other terms to the right.

Add '7n' to each side of the equation.
-3 + 21n + 7n = -31 + -7n + 7n

Combine like terms: 21n + 7n = 28n
-3 + 28n = -31 + -7n + 7n

Combine like terms: -7n + 7n = 0
-3 + 28n = -31 + 0
-3 + 28n = -31

Add '3' to each side of the equation.
-3 + 3 + 28n = -31 + 3

Combine like terms: -3 + 3 = 0
0 + 28n = -31 + 3
28n = -31 + 3

Combine like terms: -31 + 3 = -28
28n = -28

Divide each side by '28'.
n = -1

Simplifying
n = -1

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