7-7n+5n=20-51

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Solution for 7-7n+5n=20-51 equation:


Simplifying
7 + -7n + 5n = 20 + -51

Combine like terms: -7n + 5n = -2n
7 + -2n = 20 + -51

Combine like terms: 20 + -51 = -31
7 + -2n = -31

Solving
7 + -2n = -31

Solving for variable 'n'.

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

Add '-7' to each side of the equation.
7 + -7 + -2n = -31 + -7

Combine like terms: 7 + -7 = 0
0 + -2n = -31 + -7
-2n = -31 + -7

Combine like terms: -31 + -7 = -38
-2n = -38

Divide each side by '-2'.
n = 19

Simplifying
n = 19

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