-6+18=7-1(4+9)

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Solution for -6+18=7-1(4+9) equation: 


Simplifying
-6 + 18 = 7 + -1(4 + 9)

Combine like terms: -6 + 18 = 12
12 = 7 + -1(4 + 9)

Combine like terms: 4 + 9 = 13
12 = 7 + -1(13)

Multiply -1 * 13
12 = 7 + -13

Combine like terms: 7 + -13 = -6
12 = -6

Solving
12 = -6

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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