9(42)-9(4)=9(30)+9(40-2)

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Solution for 9(42)-9(4)=9(30)+9(40-2) equation: 


Simplifying
9(42) + -9(4) = 9(30) + 9(40 + -2)

Multiply 9 * 42
378 + -9(4) = 9(30) + 9(40 + -2)

Multiply -9 * 4
378 + -36 = 9(30) + 9(40 + -2)

Combine like terms: 378 + -36 = 342
342 = 9(30) + 9(40 + -2)

Multiply 9 * 30
342 = 270 + 9(40 + -2)

Combine like terms: 40 + -2 = 38
342 = 270 + 9(38)

Multiply 9 * 38
342 = 270 + 342

Combine like terms: 270 + 342 = 612
342 = 612

Solving
342 = 612

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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