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Simplifying 13x + 12 = 15x + 13 Reorder the terms: 12 + 13x = 15x + 13 Reorder the terms: 12 + 13x = 13 + 15x Solving 12 + 13x = 13 + 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. 12 + 13x + -15x = 13 + 15x + -15x Combine like terms: 13x + -15x = -2x 12 + -2x = 13 + 15x + -15x Combine like terms: 15x + -15x = 0 12 + -2x = 13 + 0 12 + -2x = 13 Add '-12' to each side of the equation. 12 + -12 + -2x = 13 + -12 Combine like terms: 12 + -12 = 0 0 + -2x = 13 + -12 -2x = 13 + -12 Combine like terms: 13 + -12 = 1 -2x = 1 Divide each side by '-2'. x = -0.5 Simplifying x = -0.5
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