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Simplifying -21 + -7x = 219 + -45x Solving -21 + -7x = 219 + -45x Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '45x' to each side of the equation. -21 + -7x + 45x = 219 + -45x + 45x Combine like terms: -7x + 45x = 38x -21 + 38x = 219 + -45x + 45x Combine like terms: -45x + 45x = 0 -21 + 38x = 219 + 0 -21 + 38x = 219 Add '21' to each side of the equation. -21 + 21 + 38x = 219 + 21 Combine like terms: -21 + 21 = 0 0 + 38x = 219 + 21 38x = 219 + 21 Combine like terms: 219 + 21 = 240 38x = 240 Divide each side by '38'. x = 6.315789474 Simplifying x = 6.315789474
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