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Simplifying 4(x + -7) + 5 = 2x + -9 Reorder the terms: 4(-7 + x) + 5 = 2x + -9 (-7 * 4 + x * 4) + 5 = 2x + -9 (-28 + 4x) + 5 = 2x + -9 Reorder the terms: -28 + 5 + 4x = 2x + -9 Combine like terms: -28 + 5 = -23 -23 + 4x = 2x + -9 Reorder the terms: -23 + 4x = -9 + 2x Solving -23 + 4x = -9 + 2x Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-2x' to each side of the equation. -23 + 4x + -2x = -9 + 2x + -2x Combine like terms: 4x + -2x = 2x -23 + 2x = -9 + 2x + -2x Combine like terms: 2x + -2x = 0 -23 + 2x = -9 + 0 -23 + 2x = -9 Add '23' to each side of the equation. -23 + 23 + 2x = -9 + 23 Combine like terms: -23 + 23 = 0 0 + 2x = -9 + 23 2x = -9 + 23 Combine like terms: -9 + 23 = 14 2x = 14 Divide each side by '2'. x = 7 Simplifying x = 7
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