[1.2*(4+n)]*6=72

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Solution for [1.2*(4+n)]*6=72 equation:


Simplifying
[1.2(4 + n)] * 6 = 72
[(4 * 1.2 + n * 1.2)] * 6 = 72
[(4.8 + 1.2n)] * 6 = 72

Reorder the terms for easier multiplication:
6[4.8 + 1.2n] = 72
[4.8 * 6 + 1.2n * 6] = 72
[28.8 + 7.2n] = 72

Solving
28.8 + 7.2n = 72

Solving for variable 'n'.

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

Add '-28.8' to each side of the equation.
28.8 + -28.8 + 7.2n = 72 + -28.8

Combine like terms: 28.8 + -28.8 = 0.0
0.0 + 7.2n = 72 + -28.8
7.2n = 72 + -28.8

Combine like terms: 72 + -28.8 = 43.2
7.2n = 43.2

Divide each side by '7.2'.
n = 6

Simplifying
n = 6

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