7n-20=8n-30

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Solution for 7n-20=8n-30 equation:


Simplifying
7n + -20 = 8n + -30

Reorder the terms:
-20 + 7n = 8n + -30

Reorder the terms:
-20 + 7n = -30 + 8n

Solving
-20 + 7n = -30 + 8n

Solving for variable 'n'.

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

Add '-8n' to each side of the equation.
-20 + 7n + -8n = -30 + 8n + -8n

Combine like terms: 7n + -8n = -1n
-20 + -1n = -30 + 8n + -8n

Combine like terms: 8n + -8n = 0
-20 + -1n = -30 + 0
-20 + -1n = -30

Add '20' to each side of the equation.
-20 + 20 + -1n = -30 + 20

Combine like terms: -20 + 20 = 0
0 + -1n = -30 + 20
-1n = -30 + 20

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

Divide each side by '-1'.
n = 10

Simplifying
n = 10

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