3n-7(-3n-3)=141

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Solution for 3n-7(-3n-3)=141 equation:


Simplifying
3n + -7(-3n + -3) = 141

Reorder the terms:
3n + -7(-3 + -3n) = 141
3n + (-3 * -7 + -3n * -7) = 141
3n + (21 + 21n) = 141

Reorder the terms:
21 + 3n + 21n = 141

Combine like terms: 3n + 21n = 24n
21 + 24n = 141

Solving
21 + 24n = 141

Solving for variable 'n'.

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

Add '-21' to each side of the equation.
21 + -21 + 24n = 141 + -21

Combine like terms: 21 + -21 = 0
0 + 24n = 141 + -21
24n = 141 + -21

Combine like terms: 141 + -21 = 120
24n = 120

Divide each side by '24'.
n = 5

Simplifying
n = 5

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