3(n-10)-7n=18

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Solution for 3(n-10)-7n=18 equation:


Simplifying
3(n + -10) + -7n = 18

Reorder the terms:
3(-10 + n) + -7n = 18
(-10 * 3 + n * 3) + -7n = 18
(-30 + 3n) + -7n = 18

Combine like terms: 3n + -7n = -4n
-30 + -4n = 18

Solving
-30 + -4n = 18

Solving for variable 'n'.

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

Add '30' to each side of the equation.
-30 + 30 + -4n = 18 + 30

Combine like terms: -30 + 30 = 0
0 + -4n = 18 + 30
-4n = 18 + 30

Combine like terms: 18 + 30 = 48
-4n = 48

Divide each side by '-4'.
n = -12

Simplifying
n = -12

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