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Simplifying 5z + 15 = -30z + -12 Reorder the terms: 15 + 5z = -30z + -12 Reorder the terms: 15 + 5z = -12 + -30z Solving 15 + 5z = -12 + -30z Solving for variable 'z'. Move all terms containing z to the left, all other terms to the right. Add '30z' to each side of the equation. 15 + 5z + 30z = -12 + -30z + 30z Combine like terms: 5z + 30z = 35z 15 + 35z = -12 + -30z + 30z Combine like terms: -30z + 30z = 0 15 + 35z = -12 + 0 15 + 35z = -12 Add '-15' to each side of the equation. 15 + -15 + 35z = -12 + -15 Combine like terms: 15 + -15 = 0 0 + 35z = -12 + -15 35z = -12 + -15 Combine like terms: -12 + -15 = -27 35z = -27 Divide each side by '35'. z = -0.7714285714 Simplifying z = -0.7714285714
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