3[1+4n]-2[5n-3]=25

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Solution for 3[1+4n]-2[5n-3]=25 equation:


Simplifying
3[1 + 4n] + -2[5n + -3] = 25
[1 * 3 + 4n * 3] + -2[5n + -3] = 25
[3 + 12n] + -2[5n + -3] = 25

Reorder the terms:
3 + 12n + -2[-3 + 5n] = 25
3 + 12n + [-3 * -2 + 5n * -2] = 25
3 + 12n + [6 + -10n] = 25

Reorder the terms:
3 + 6 + 12n + -10n = 25

Combine like terms: 3 + 6 = 9
9 + 12n + -10n = 25

Combine like terms: 12n + -10n = 2n
9 + 2n = 25

Solving
9 + 2n = 25

Solving for variable 'n'.

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

Add '-9' to each side of the equation.
9 + -9 + 2n = 25 + -9

Combine like terms: 9 + -9 = 0
0 + 2n = 25 + -9
2n = 25 + -9

Combine like terms: 25 + -9 = 16
2n = 16

Divide each side by '2'.
n = 8

Simplifying
n = 8

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