17=-4+7(n-9)

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Solution for 17=-4+7(n-9) equation:


Simplifying
17 = -4 + 7(n + -9)

Reorder the terms:
17 = -4 + 7(-9 + n)
17 = -4 + (-9 * 7 + n * 7)
17 = -4 + (-63 + 7n)

Combine like terms: -4 + -63 = -67
17 = -67 + 7n

Solving
17 = -67 + 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.
17 + -7n = -67 + 7n + -7n

Combine like terms: 7n + -7n = 0
17 + -7n = -67 + 0
17 + -7n = -67

Add '-17' to each side of the equation.
17 + -17 + -7n = -67 + -17

Combine like terms: 17 + -17 = 0
0 + -7n = -67 + -17
-7n = -67 + -17

Combine like terms: -67 + -17 = -84
-7n = -84

Divide each side by '-7'.
n = 12

Simplifying
n = 12

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