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Simplifying 2.2(x + -4) + 5x = 7 Reorder the terms: 2.2(-4 + x) + 5x = 7 (-4 * 2.2 + x * 2.2) + 5x = 7 (-8.8 + 2.2x) + 5x = 7 Combine like terms: 2.2x + 5x = 7.2x -8.8 + 7.2x = 7 Solving -8.8 + 7.2x = 7 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '8.8' to each side of the equation. -8.8 + 8.8 + 7.2x = 7 + 8.8 Combine like terms: -8.8 + 8.8 = 0.0 0.0 + 7.2x = 7 + 8.8 7.2x = 7 + 8.8 Combine like terms: 7 + 8.8 = 15.8 7.2x = 15.8 Divide each side by '7.2'. x = 2.194444444 Simplifying x = 2.194444444
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