100-2(n-4)=7n

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Solution for 100-2(n-4)=7n equation:


Simplifying
100 + -2(n + -4) = 7n

Reorder the terms:
100 + -2(-4 + n) = 7n
100 + (-4 * -2 + n * -2) = 7n
100 + (8 + -2n) = 7n

Combine like terms: 100 + 8 = 108
108 + -2n = 7n

Solving
108 + -2n = 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.
108 + -2n + -7n = 7n + -7n

Combine like terms: -2n + -7n = -9n
108 + -9n = 7n + -7n

Combine like terms: 7n + -7n = 0
108 + -9n = 0

Add '-108' to each side of the equation.
108 + -108 + -9n = 0 + -108

Combine like terms: 108 + -108 = 0
0 + -9n = 0 + -108
-9n = 0 + -108

Combine like terms: 0 + -108 = -108
-9n = -108

Divide each side by '-9'.
n = 12

Simplifying
n = 12

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