140-(85-20)=n

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Solution for 140-(85-20)=n equation:


Simplifying
140 + -1(85 + -20) = n

Combine like terms: 85 + -20 = 65
140 + -1(65) = n

Multiply -1 * 65
140 + -65 = n

Combine like terms: 140 + -65 = 75
75 = n

Solving
75 = 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.
75 + -1n = n + -1n

Combine like terms: n + -1n = 0
75 + -1n = 0

Add '-75' to each side of the equation.
75 + -75 + -1n = 0 + -75

Combine like terms: 75 + -75 = 0
0 + -1n = 0 + -75
-1n = 0 + -75

Combine like terms: 0 + -75 = -75
-1n = -75

Divide each side by '-1'.
n = 75

Simplifying
n = 75

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