7(n+3)=5(1+2n)-2

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Solution for 7(n+3)=5(1+2n)-2 equation:


Simplifying
7(n + 3) = 5(1 + 2n) + -2

Reorder the terms:
7(3 + n) = 5(1 + 2n) + -2
(3 * 7 + n * 7) = 5(1 + 2n) + -2
(21 + 7n) = 5(1 + 2n) + -2
21 + 7n = (1 * 5 + 2n * 5) + -2
21 + 7n = (5 + 10n) + -2

Reorder the terms:
21 + 7n = 5 + -2 + 10n

Combine like terms: 5 + -2 = 3
21 + 7n = 3 + 10n

Solving
21 + 7n = 3 + 10n

Solving for variable 'n'.

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

Add '-10n' to each side of the equation.
21 + 7n + -10n = 3 + 10n + -10n

Combine like terms: 7n + -10n = -3n
21 + -3n = 3 + 10n + -10n

Combine like terms: 10n + -10n = 0
21 + -3n = 3 + 0
21 + -3n = 3

Add '-21' to each side of the equation.
21 + -21 + -3n = 3 + -21

Combine like terms: 21 + -21 = 0
0 + -3n = 3 + -21
-3n = 3 + -21

Combine like terms: 3 + -21 = -18
-3n = -18

Divide each side by '-3'.
n = 6

Simplifying
n = 6

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