-28=7[n+3]

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Solution for -28=7[n+3] equation:


Simplifying
-28 = 7[n + 3]

Reorder the terms:
-28 = 7[3 + n]
-28 = [3 * 7 + n * 7]
-28 = [21 + 7n]

Solving
-28 = 21 + 7n

Solving for variable 'n'.

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

Add '-7n' to each side of the equation.
-28 + -7n = 21 + 7n + -7n

Combine like terms: 7n + -7n = 0
-28 + -7n = 21 + 0
-28 + -7n = 21

Add '28' to each side of the equation.
-28 + 28 + -7n = 21 + 28

Combine like terms: -28 + 28 = 0
0 + -7n = 21 + 28
-7n = 21 + 28

Combine like terms: 21 + 28 = 49
-7n = 49

Divide each side by '-7'.
n = -7

Simplifying
n = -7

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