3(4n-5)-7=2n+8

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Solution for 3(4n-5)-7=2n+8 equation:


Simplifying
3(4n + -5) + -7 = 2n + 8

Reorder the terms:
3(-5 + 4n) + -7 = 2n + 8
(-5 * 3 + 4n * 3) + -7 = 2n + 8
(-15 + 12n) + -7 = 2n + 8

Reorder the terms:
-15 + -7 + 12n = 2n + 8

Combine like terms: -15 + -7 = -22
-22 + 12n = 2n + 8

Reorder the terms:
-22 + 12n = 8 + 2n

Solving
-22 + 12n = 8 + 2n

Solving for variable 'n'.

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

Add '-2n' to each side of the equation.
-22 + 12n + -2n = 8 + 2n + -2n

Combine like terms: 12n + -2n = 10n
-22 + 10n = 8 + 2n + -2n

Combine like terms: 2n + -2n = 0
-22 + 10n = 8 + 0
-22 + 10n = 8

Add '22' to each side of the equation.
-22 + 22 + 10n = 8 + 22

Combine like terms: -22 + 22 = 0
0 + 10n = 8 + 22
10n = 8 + 22

Combine like terms: 8 + 22 = 30
10n = 30

Divide each side by '10'.
n = 3

Simplifying
n = 3

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