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Simplifying 12 + -4(2x + 9) = -8(x + 3) Reorder the terms: 12 + -4(9 + 2x) = -8(x + 3) 12 + (9 * -4 + 2x * -4) = -8(x + 3) 12 + (-36 + -8x) = -8(x + 3) Combine like terms: 12 + -36 = -24 -24 + -8x = -8(x + 3) Reorder the terms: -24 + -8x = -8(3 + x) -24 + -8x = (3 * -8 + x * -8) -24 + -8x = (-24 + -8x) Add '24' to each side of the equation. -24 + 24 + -8x = -24 + 24 + -8x Combine like terms: -24 + 24 = 0 0 + -8x = -24 + 24 + -8x -8x = -24 + 24 + -8x Combine like terms: -24 + 24 = 0 -8x = 0 + -8x -8x = -8x Add '8x' to each side of the equation. -8x + 8x = -8x + 8x Combine like terms: -8x + 8x = 0 0 = -8x + 8x Combine like terms: -8x + 8x = 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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