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Simplifying 142 + x = 64 + -3x Solving 142 + x = 64 + -3x Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '3x' to each side of the equation. 142 + x + 3x = 64 + -3x + 3x Combine like terms: x + 3x = 4x 142 + 4x = 64 + -3x + 3x Combine like terms: -3x + 3x = 0 142 + 4x = 64 + 0 142 + 4x = 64 Add '-142' to each side of the equation. 142 + -142 + 4x = 64 + -142 Combine like terms: 142 + -142 = 0 0 + 4x = 64 + -142 4x = 64 + -142 Combine like terms: 64 + -142 = -78 4x = -78 Divide each side by '4'. x = -19.5 Simplifying x = -19.5
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