15=4(n-18)+7

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Solution for 15=4(n-18)+7 equation: 


Simplifying
15 = 4(n + -18) + 7

Reorder the terms:
15 = 4(-18 + n) + 7
15 = (-18 * 4 + n * 4) + 7
15 = (-72 + 4n) + 7

Reorder the terms:
15 = -72 + 7 + 4n

Combine like terms: -72 + 7 = -65
15 = -65 + 4n

Solving
15 = -65 + 4n

Solving for variable 'n'.

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

Add '-4n' to each side of the equation.
15 + -4n = -65 + 4n + -4n

Combine like terms: 4n + -4n = 0
15 + -4n = -65 + 0
15 + -4n = -65

Add '-15' to each side of the equation.
15 + -15 + -4n = -65 + -15

Combine like terms: 15 + -15 = 0
0 + -4n = -65 + -15
-4n = -65 + -15

Combine like terms: -65 + -15 = -80
-4n = -80

Divide each side by '-4'.
n = 20

Simplifying
n = 20

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