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Simplifying 1 + -1y + -1z = 1 + -2.5y + -1z Add '-1' to each side of the equation. 1 + -1y + -1 + -1z = 1 + -2.5y + -1 + -1z Reorder the terms: 1 + -1 + -1y + -1z = 1 + -2.5y + -1 + -1z Combine like terms: 1 + -1 = 0 0 + -1y + -1z = 1 + -2.5y + -1 + -1z -1y + -1z = 1 + -2.5y + -1 + -1z Reorder the terms: -1y + -1z = 1 + -1 + -2.5y + -1z Combine like terms: 1 + -1 = 0 -1y + -1z = 0 + -2.5y + -1z -1y + -1z = -2.5y + -1z Add 'z' to each side of the equation. -1y + -1z + z = -2.5y + -1z + z Combine like terms: -1z + z = 0 -1y + 0 = -2.5y + -1z + z -1y = -2.5y + -1z + z Combine like terms: -1z + z = 0 -1y = -2.5y + 0 -1y = -2.5y Solving -1y = -2.5y Solving for variable 'y'. Move all terms containing y to the left, all other terms to the right. Add '2.5y' to each side of the equation. -1y + 2.5y = -2.5y + 2.5y Combine like terms: -1y + 2.5y = 1.5y 1.5y = -2.5y + 2.5y Combine like terms: -2.5y + 2.5y = 0.0 1.5y = 0.0 Divide each side by '1.5'. y = 0 Simplifying y = 0
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