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Simplifying z2 + -4x + -28 = 0 Reorder the terms: -28 + -4x + z2 = 0 Solving -28 + -4x + z2 = 0 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '28' to each side of the equation. -28 + -4x + 28 + z2 = 0 + 28 Reorder the terms: -28 + 28 + -4x + z2 = 0 + 28 Combine like terms: -28 + 28 = 0 0 + -4x + z2 = 0 + 28 -4x + z2 = 0 + 28 Combine like terms: 0 + 28 = 28 -4x + z2 = 28 Add '-1z2' to each side of the equation. -4x + z2 + -1z2 = 28 + -1z2 Combine like terms: z2 + -1z2 = 0 -4x + 0 = 28 + -1z2 -4x = 28 + -1z2 Divide each side by '-4'. x = -7 + 0.25z2 Simplifying x = -7 + 0.25z2
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