18-2(4+5)=

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Solution for 18-2(4+5)= equation: 


Simplifying
18 + -2(4 + 5) = 0

Combine like terms: 4 + 5 = 9
18 + -2(9) = 0

Multiply -2 * 9
18 + -18 = 0

Combine like terms: 18 + -18 = 0
0 = 0

Solving
0 = 0

Couldn't find a variable to solve for.

This equation is an identity, all real numbers are solutions.

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