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Simplifying 142 = 7x + 2(4x + 11) Reorder the terms: 142 = 7x + 2(11 + 4x) 142 = 7x + (11 * 2 + 4x * 2) 142 = 7x + (22 + 8x) Reorder the terms: 142 = 22 + 7x + 8x Combine like terms: 7x + 8x = 15x 142 = 22 + 15x Solving 142 = 22 + 15x Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-15x' to each side of the equation. 142 + -15x = 22 + 15x + -15x Combine like terms: 15x + -15x = 0 142 + -15x = 22 + 0 142 + -15x = 22 Add '-142' to each side of the equation. 142 + -142 + -15x = 22 + -142 Combine like terms: 142 + -142 = 0 0 + -15x = 22 + -142 -15x = 22 + -142 Combine like terms: 22 + -142 = -120 -15x = -120 Divide each side by '-15'. x = 8 Simplifying x = 8
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