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Simplifying 3(z + -3) = -3(4 + -3z) + -6z Reorder the terms: 3(-3 + z) = -3(4 + -3z) + -6z (-3 * 3 + z * 3) = -3(4 + -3z) + -6z (-9 + 3z) = -3(4 + -3z) + -6z -9 + 3z = (4 * -3 + -3z * -3) + -6z -9 + 3z = (-12 + 9z) + -6z Combine like terms: 9z + -6z = 3z -9 + 3z = -12 + 3z Add '-3z' to each side of the equation. -9 + 3z + -3z = -12 + 3z + -3z Combine like terms: 3z + -3z = 0 -9 + 0 = -12 + 3z + -3z -9 = -12 + 3z + -3z Combine like terms: 3z + -3z = 0 -9 = -12 + 0 -9 = -12 Solving -9 = -12 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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