(12n-40)-(10n+30)=n+10

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Solution for (12n-40)-(10n+30)=n+10 equation:


Simplifying
(12n + -40) + -1(10n + 30) = n + 10

Reorder the terms:
(-40 + 12n) + -1(10n + 30) = n + 10

Remove parenthesis around (-40 + 12n)
-40 + 12n + -1(10n + 30) = n + 10

Reorder the terms:
-40 + 12n + -1(30 + 10n) = n + 10
-40 + 12n + (30 * -1 + 10n * -1) = n + 10
-40 + 12n + (-30 + -10n) = n + 10

Reorder the terms:
-40 + -30 + 12n + -10n = n + 10

Combine like terms: -40 + -30 = -70
-70 + 12n + -10n = n + 10

Combine like terms: 12n + -10n = 2n
-70 + 2n = n + 10

Reorder the terms:
-70 + 2n = 10 + n

Solving
-70 + 2n = 10 + n

Solving for variable 'n'.

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

Add '-1n' to each side of the equation.
-70 + 2n + -1n = 10 + n + -1n

Combine like terms: 2n + -1n = 1n
-70 + 1n = 10 + n + -1n

Combine like terms: n + -1n = 0
-70 + 1n = 10 + 0
-70 + 1n = 10

Add '70' to each side of the equation.
-70 + 70 + 1n = 10 + 70

Combine like terms: -70 + 70 = 0
0 + 1n = 10 + 70
1n = 10 + 70

Combine like terms: 10 + 70 = 80
1n = 80

Divide each side by '1'.
n = 80

Simplifying
n = 80

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