40-(15+3n)=4

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Solution for 40-(15+3n)=4 equation:


Simplifying
40 + -1(15 + 3n) = 4
40 + (15 * -1 + 3n * -1) = 4
40 + (-15 + -3n) = 4

Combine like terms: 40 + -15 = 25
25 + -3n = 4

Solving
25 + -3n = 4

Solving for variable 'n'.

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

Add '-25' to each side of the equation.
25 + -25 + -3n = 4 + -25

Combine like terms: 25 + -25 = 0
0 + -3n = 4 + -25
-3n = 4 + -25

Combine like terms: 4 + -25 = -21
-3n = -21

Divide each side by '-3'.
n = 7

Simplifying
n = 7

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