-91=7(3n-7)

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Solution for -91=7(3n-7) equation:


Simplifying
-91 = 7(3n + -7)

Reorder the terms:
-91 = 7(-7 + 3n)
-91 = (-7 * 7 + 3n * 7)
-91 = (-49 + 21n)

Solving
-91 = -49 + 21n

Solving for variable 'n'.

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

Add '-21n' to each side of the equation.
-91 + -21n = -49 + 21n + -21n

Combine like terms: 21n + -21n = 0
-91 + -21n = -49 + 0
-91 + -21n = -49

Add '91' to each side of the equation.
-91 + 91 + -21n = -49 + 91

Combine like terms: -91 + 91 = 0
0 + -21n = -49 + 91
-21n = -49 + 91

Combine like terms: -49 + 91 = 42
-21n = 42

Divide each side by '-21'.
n = -2

Simplifying
n = -2

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