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Simplifying 7x + -28 = 40 + -15x Reorder the terms: -28 + 7x = 40 + -15x Solving -28 + 7x = 40 + -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. -28 + 7x + 15x = 40 + -15x + 15x Combine like terms: 7x + 15x = 22x -28 + 22x = 40 + -15x + 15x Combine like terms: -15x + 15x = 0 -28 + 22x = 40 + 0 -28 + 22x = 40 Add '28' to each side of the equation. -28 + 28 + 22x = 40 + 28 Combine like terms: -28 + 28 = 0 0 + 22x = 40 + 28 22x = 40 + 28 Combine like terms: 40 + 28 = 68 22x = 68 Divide each side by '22'. x = 3.090909091 Simplifying x = 3.090909091
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