9=8(n-4)-7

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Solution for 9=8(n-4)-7 equation:


Simplifying
9 = 8(n + -4) + -7

Reorder the terms:
9 = 8(-4 + n) + -7
9 = (-4 * 8 + n * 8) + -7
9 = (-32 + 8n) + -7

Reorder the terms:
9 = -32 + -7 + 8n

Combine like terms: -32 + -7 = -39
9 = -39 + 8n

Solving
9 = -39 + 8n

Solving for variable 'n'.

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

Add '-8n' to each side of the equation.
9 + -8n = -39 + 8n + -8n

Combine like terms: 8n + -8n = 0
9 + -8n = -39 + 0
9 + -8n = -39

Add '-9' to each side of the equation.
9 + -9 + -8n = -39 + -9

Combine like terms: 9 + -9 = 0
0 + -8n = -39 + -9
-8n = -39 + -9

Combine like terms: -39 + -9 = -48
-8n = -48

Divide each side by '-8'.
n = 6

Simplifying
n = 6

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