20(10-1)-4(7-1)=

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Solution for 20(10-1)-4(7-1)= equation: 


Simplifying
20(10 + -1) + -4(7 + -1) = 0

Combine like terms: 10 + -1 = 9
20(9) + -4(7 + -1) = 0

Multiply 20 * 9
180 + -4(7 + -1) = 0

Combine like terms: 7 + -1 = 6
180 + -4(6) = 0

Multiply -4 * 6
180 + -24 = 0

Combine like terms: 180 + -24 = 156
156 = 0

Solving
156 = 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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