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Simplifying 9x + -15 = -7x + 20 Reorder the terms: -15 + 9x = -7x + 20 Reorder the terms: -15 + 9x = 20 + -7x Solving -15 + 9x = 20 + -7x Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '7x' to each side of the equation. -15 + 9x + 7x = 20 + -7x + 7x Combine like terms: 9x + 7x = 16x -15 + 16x = 20 + -7x + 7x Combine like terms: -7x + 7x = 0 -15 + 16x = 20 + 0 -15 + 16x = 20 Add '15' to each side of the equation. -15 + 15 + 16x = 20 + 15 Combine like terms: -15 + 15 = 0 0 + 16x = 20 + 15 16x = 20 + 15 Combine like terms: 20 + 15 = 35 16x = 35 Divide each side by '16'. x = 2.1875 Simplifying x = 2.1875
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