142-438+165-65-[-20+5-15+5+40]=

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Solution for 142-438+165-65-[-20+5-15+5+40]= equation: 


Simplifying
142 + -438 + 165 + -65 + -1[-20 + 5 + -15 + 5 + 40] = 0

Combine like terms: -20 + 5 = -15
142 + -438 + 165 + -65 + -1[-15 + -15 + 5 + 40] = 0

Combine like terms: -15 + -15 = -30
142 + -438 + 165 + -65 + -1[-30 + 5 + 40] = 0

Combine like terms: -30 + 5 = -25
142 + -438 + 165 + -65 + -1[-25 + 40] = 0

Combine like terms: -25 + 40 = 15
142 + -438 + 165 + -65 + -1[15] = 0

Multiply -1 * 15
142 + -438 + 165 + -65 + -15 = 0

Combine like terms: 142 + -438 = -296
-296 + 165 + -65 + -15 = 0

Combine like terms: -296 + 165 = -131
-131 + -65 + -15 = 0

Combine like terms: -131 + -65 = -196
-196 + -15 = 0

Combine like terms: -196 + -15 = -211
-211 = 0

Solving
-211 = 0

Couldn't find a variable to solve for.

This equation is invalid, the left and right sides are not equal, therefore there is no solution.

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