-7+2(2n-1)=-31-7n

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Solution for -7+2(2n-1)=-31-7n equation:


Simplifying
-7 + 2(2n + -1) = -31 + -7n

Reorder the terms:
-7 + 2(-1 + 2n) = -31 + -7n
-7 + (-1 * 2 + 2n * 2) = -31 + -7n
-7 + (-2 + 4n) = -31 + -7n

Combine like terms: -7 + -2 = -9
-9 + 4n = -31 + -7n

Solving
-9 + 4n = -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.
-9 + 4n + 7n = -31 + -7n + 7n

Combine like terms: 4n + 7n = 11n
-9 + 11n = -31 + -7n + 7n

Combine like terms: -7n + 7n = 0
-9 + 11n = -31 + 0
-9 + 11n = -31

Add '9' to each side of the equation.
-9 + 9 + 11n = -31 + 9

Combine like terms: -9 + 9 = 0
0 + 11n = -31 + 9
11n = -31 + 9

Combine like terms: -31 + 9 = -22
11n = -22

Divide each side by '11'.
n = -2

Simplifying
n = -2

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