7n-20-8n=10

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Solution for 7n-20-8n=10 equation:


Simplifying
7n + -20 + -8n = 10

Reorder the terms:
-20 + 7n + -8n = 10

Combine like terms: 7n + -8n = -1n
-20 + -1n = 10

Solving
-20 + -1n = 10

Solving for variable 'n'.

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

Add '20' to each side of the equation.
-20 + 20 + -1n = 10 + 20

Combine like terms: -20 + 20 = 0
0 + -1n = 10 + 20
-1n = 10 + 20

Combine like terms: 10 + 20 = 30
-1n = 30

Divide each side by '-1'.
n = -30

Simplifying
n = -30

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