3(n+1)-8(2-n)=20

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Solution for 3(n+1)-8(2-n)=20 equation:


Simplifying
3(n + 1) + -8(2 + -1n) = 20

Reorder the terms:
3(1 + n) + -8(2 + -1n) = 20
(1 * 3 + n * 3) + -8(2 + -1n) = 20
(3 + 3n) + -8(2 + -1n) = 20
3 + 3n + (2 * -8 + -1n * -8) = 20
3 + 3n + (-16 + 8n) = 20

Reorder the terms:
3 + -16 + 3n + 8n = 20

Combine like terms: 3 + -16 = -13
-13 + 3n + 8n = 20

Combine like terms: 3n + 8n = 11n
-13 + 11n = 20

Solving
-13 + 11n = 20

Solving for variable 'n'.

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

Add '13' to each side of the equation.
-13 + 13 + 11n = 20 + 13

Combine like terms: -13 + 13 = 0
0 + 11n = 20 + 13
11n = 20 + 13

Combine like terms: 20 + 13 = 33
11n = 33

Divide each side by '11'.
n = 3

Simplifying
n = 3

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