7[2n+3]=91

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Solution for 7[2n+3]=91 equation:


Simplifying
7[2n + 3] = 91

Reorder the terms:
7[3 + 2n] = 91
[3 * 7 + 2n * 7] = 91
[21 + 14n] = 91

Solving
21 + 14n = 91

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 + 14n = 91 + -21

Combine like terms: 21 + -21 = 0
0 + 14n = 91 + -21
14n = 91 + -21

Combine like terms: 91 + -21 = 70
14n = 70

Divide each side by '14'.
n = 5

Simplifying
n = 5

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