12(-1+3)=4(2(-1)+9)+4(-1)

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Solution for 12(-1+3)=4(2(-1)+9)+4(-1) equation: 


Simplifying
12(-1 + 3) = 4(2(-1) + 9) + 4(-1)

Combine like terms: -1 + 3 = 2
12(2) = 4(2(-1) + 9) + 4(-1)

Multiply 12 * 2
24 = 4(2(-1) + 9) + 4(-1)

Multiply 2 * -1
24 = 4(-2 + 9) + 4(-1)

Combine like terms: -2 + 9 = 7
24 = 4(7) + 4(-1)

Multiply 4 * 7
24 = 28 + 4(-1)

Multiply 4 * -1
24 = 28 + -4

Combine like terms: 28 + -4 = 24
24 = 24

Add '-24' to each side of the equation.
24 + -24 = 24 + -24

Combine like terms: 24 + -24 = 0
0 = 24 + -24

Combine like terms: 24 + -24 = 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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