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Simplifying x2 + 2y + z + 80 + 90 = 100 Reorder the terms: 80 + 90 + x2 + 2y + z = 100 Combine like terms: 80 + 90 = 170 170 + x2 + 2y + z = 100 Solving 170 + x2 + 2y + z = 100 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-170' to each side of the equation. 170 + x2 + 2y + -170 + z = 100 + -170 Reorder the terms: 170 + -170 + x2 + 2y + z = 100 + -170 Combine like terms: 170 + -170 = 0 0 + x2 + 2y + z = 100 + -170 x2 + 2y + z = 100 + -170 Combine like terms: 100 + -170 = -70 x2 + 2y + z = -70 Add '-2y' to each side of the equation. x2 + 2y + -2y + z = -70 + -2y Combine like terms: 2y + -2y = 0 x2 + 0 + z = -70 + -2y x2 + z = -70 + -2y Add '-1z' to each side of the equation. x2 + z + -1z = -70 + -2y + -1z Combine like terms: z + -1z = 0 x2 + 0 = -70 + -2y + -1z x2 = -70 + -2y + -1z Simplifying x2 = -70 + -2y + -1z Reorder the terms: 70 + x2 + 2y + z = -70 + -2y + -1z + 70 + 2y + z Reorder the terms: 70 + x2 + 2y + z = -70 + 70 + -2y + 2y + -1z + z Combine like terms: -70 + 70 = 0 70 + x2 + 2y + z = 0 + -2y + 2y + -1z + z 70 + x2 + 2y + z = -2y + 2y + -1z + z Combine like terms: -2y + 2y = 0 70 + x2 + 2y + z = 0 + -1z + z 70 + x2 + 2y + z = -1z + z Combine like terms: -1z + z = 0 70 + x2 + 2y + z = 0 The solution to this equation could not be determined.
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