4(9-7)=

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Solution for 4(9-7)= equation: 


Simplifying
4(9 + -7) = 0

Combine like terms: 9 + -7 = 2
4(2) = 0

Multiply 4 * 2
8 = 0

Solving
8 = 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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