-90=7(2+4n)-2

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Solution for -90=7(2+4n)-2 equation:


Simplifying
-90 = 7(2 + 4n) + -2
-90 = (2 * 7 + 4n * 7) + -2
-90 = (14 + 28n) + -2

Reorder the terms:
-90 = 14 + -2 + 28n

Combine like terms: 14 + -2 = 12
-90 = 12 + 28n

Solving
-90 = 12 + 28n

Solving for variable 'n'.

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

Add '-28n' to each side of the equation.
-90 + -28n = 12 + 28n + -28n

Combine like terms: 28n + -28n = 0
-90 + -28n = 12 + 0
-90 + -28n = 12

Add '90' to each side of the equation.
-90 + 90 + -28n = 12 + 90

Combine like terms: -90 + 90 = 0
0 + -28n = 12 + 90
-28n = 12 + 90

Combine like terms: 12 + 90 = 102
-28n = 102

Divide each side by '-28'.
n = -3.642857143

Simplifying
n = -3.642857143

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