-140=-7n

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Solution for -140=-7n equation:


Simplifying
-140 = -7n

Solving
-140 = -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.
-140 + 7n = -7n + 7n

Combine like terms: -7n + 7n = 0
-140 + 7n = 0

Add '140' to each side of the equation.
-140 + 140 + 7n = 0 + 140

Combine like terms: -140 + 140 = 0
0 + 7n = 0 + 140
7n = 0 + 140

Combine like terms: 0 + 140 = 140
7n = 140

Divide each side by '7'.
n = 20

Simplifying
n = 20

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