-7(4n+3)+8n=-7n+31

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Solution for -7(4n+3)+8n=-7n+31 equation:


Simplifying
-7(4n + 3) + 8n = -7n + 31

Reorder the terms:
-7(3 + 4n) + 8n = -7n + 31
(3 * -7 + 4n * -7) + 8n = -7n + 31
(-21 + -28n) + 8n = -7n + 31

Combine like terms: -28n + 8n = -20n
-21 + -20n = -7n + 31

Reorder the terms:
-21 + -20n = 31 + -7n

Solving
-21 + -20n = 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.
-21 + -20n + 7n = 31 + -7n + 7n

Combine like terms: -20n + 7n = -13n
-21 + -13n = 31 + -7n + 7n

Combine like terms: -7n + 7n = 0
-21 + -13n = 31 + 0
-21 + -13n = 31

Add '21' to each side of the equation.
-21 + 21 + -13n = 31 + 21

Combine like terms: -21 + 21 = 0
0 + -13n = 31 + 21
-13n = 31 + 21

Combine like terms: 31 + 21 = 52
-13n = 52

Divide each side by '-13'.
n = -4

Simplifying
n = -4

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