-2(2n-5)-3=-7n+31

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Solution for -2(2n-5)-3=-7n+31 equation:


Simplifying
-2(2n + -5) + -3 = -7n + 31

Reorder the terms:
-2(-5 + 2n) + -3 = -7n + 31
(-5 * -2 + 2n * -2) + -3 = -7n + 31
(10 + -4n) + -3 = -7n + 31

Reorder the terms:
10 + -3 + -4n = -7n + 31

Combine like terms: 10 + -3 = 7
7 + -4n = -7n + 31

Reorder the terms:
7 + -4n = 31 + -7n

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

Combine like terms: -4n + 7n = 3n
7 + 3n = 31 + -7n + 7n

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

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

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

Combine like terms: 31 + -7 = 24
3n = 24

Divide each side by '3'.
n = 8

Simplifying
n = 8

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