3n-(-4)=40

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Solution for 3n-(-4)=40 equation: 


Simplifying
3n + -1(-4) = 40

Multiply -1 * -4
3n + 4 = 40

Reorder the terms:
4 + 3n = 40

Solving
4 + 3n = 40

Solving for variable 'n'.

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

Add '-4' to each side of the equation.
4 + -4 + 3n = 40 + -4

Combine like terms: 4 + -4 = 0
0 + 3n = 40 + -4
3n = 40 + -4

Combine like terms: 40 + -4 = 36
3n = 36

Divide each side by '3'.
n = 12

Simplifying
n = 12

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