(n-7)*8=40

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Solution for (n-7)*8=40 equation:


Simplifying
(n + -7) * 8 = 40

Reorder the terms:
(-7 + n) * 8 = 40

Reorder the terms for easier multiplication:
8(-7 + n) = 40
(-7 * 8 + n * 8) = 40
(-56 + 8n) = 40

Solving
-56 + 8n = 40

Solving for variable 'n'.

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

Add '56' to each side of the equation.
-56 + 56 + 8n = 40 + 56

Combine like terms: -56 + 56 = 0
0 + 8n = 40 + 56
8n = 40 + 56

Combine like terms: 40 + 56 = 96
8n = 96

Divide each side by '8'.
n = 12

Simplifying
n = 12

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