3(n-2)-4(5n+2)=3n-84

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Solution for 3(n-2)-4(5n+2)=3n-84 equation:


Simplifying
3(n + -2) + -4(5n + 2) = 3n + -84

Reorder the terms:
3(-2 + n) + -4(5n + 2) = 3n + -84
(-2 * 3 + n * 3) + -4(5n + 2) = 3n + -84
(-6 + 3n) + -4(5n + 2) = 3n + -84

Reorder the terms:
-6 + 3n + -4(2 + 5n) = 3n + -84
-6 + 3n + (2 * -4 + 5n * -4) = 3n + -84
-6 + 3n + (-8 + -20n) = 3n + -84

Reorder the terms:
-6 + -8 + 3n + -20n = 3n + -84

Combine like terms: -6 + -8 = -14
-14 + 3n + -20n = 3n + -84

Combine like terms: 3n + -20n = -17n
-14 + -17n = 3n + -84

Reorder the terms:
-14 + -17n = -84 + 3n

Solving
-14 + -17n = -84 + 3n

Solving for variable 'n'.

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

Add '-3n' to each side of the equation.
-14 + -17n + -3n = -84 + 3n + -3n

Combine like terms: -17n + -3n = -20n
-14 + -20n = -84 + 3n + -3n

Combine like terms: 3n + -3n = 0
-14 + -20n = -84 + 0
-14 + -20n = -84

Add '14' to each side of the equation.
-14 + 14 + -20n = -84 + 14

Combine like terms: -14 + 14 = 0
0 + -20n = -84 + 14
-20n = -84 + 14

Combine like terms: -84 + 14 = -70
-20n = -70

Divide each side by '-20'.
n = 3.5

Simplifying
n = 3.5

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