12*20-140=n

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Solution for 12*20-140=n equation:


Simplifying
12 * 20 + -140 = n

Multiply 12 * 20
240 + -140 = n

Combine like terms: 240 + -140 = 100
100 = n

Solving
100 = n

Solving for variable 'n'.

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

Add '-1n' to each side of the equation.
100 + -1n = n + -1n

Combine like terms: n + -1n = 0
100 + -1n = 0

Add '-100' to each side of the equation.
100 + -100 + -1n = 0 + -100

Combine like terms: 100 + -100 = 0
0 + -1n = 0 + -100
-1n = 0 + -100

Combine like terms: 0 + -100 = -100
-1n = -100

Divide each side by '-1'.
n = 100

Simplifying
n = 100

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