(8+4)*(2+1)-18-8*(4-2)=

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Solution for (8+4)*(2+1)-18-8*(4-2)= equation: 


Simplifying
(8 + 4)(2 + 1) + -18 + -8(4 + -2) = 0

Combine like terms: 8 + 4 = 12
(12)(2 + 1) + -18 + -8(4 + -2) = 0

Combine like terms: 2 + 1 = 3
12(3) + -18 + -8(4 + -2) = 0

Multiply 12 * 3
36 + -18 + -8(4 + -2) = 0

Combine like terms: 4 + -2 = 2
36 + -18 + -8(2) = 0

Multiply -8 * 2
36 + -18 + -16 = 0

Combine like terms: 36 + -18 = 18
18 + -16 = 0

Combine like terms: 18 + -16 = 2
2 = 0

Solving
2 = 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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