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Simplifying 4x + 7 + -2r = 0 Reorder the terms: 7 + -2r + 4x = 0 Solving 7 + -2r + 4x = 0 Solving for variable 'r'. Move all terms containing r to the left, all other terms to the right. Add '-7' to each side of the equation. 7 + -2r + -7 + 4x = 0 + -7 Reorder the terms: 7 + -7 + -2r + 4x = 0 + -7 Combine like terms: 7 + -7 = 0 0 + -2r + 4x = 0 + -7 -2r + 4x = 0 + -7 Combine like terms: 0 + -7 = -7 -2r + 4x = -7 Add '-4x' to each side of the equation. -2r + 4x + -4x = -7 + -4x Combine like terms: 4x + -4x = 0 -2r + 0 = -7 + -4x -2r = -7 + -4x Divide each side by '-2'. r = 3.5 + 2x Simplifying r = 3.5 + 2x
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