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Simplifying 3r + -7 = (4 + -3r) Reorder the terms: -7 + 3r = (4 + -3r) Remove parenthesis around (4 + -3r) -7 + 3r = 4 + -3r Solving -7 + 3r = 4 + -3r Solving for variable 'r'. Move all terms containing r to the left, all other terms to the right. Add '3r' to each side of the equation. -7 + 3r + 3r = 4 + -3r + 3r Combine like terms: 3r + 3r = 6r -7 + 6r = 4 + -3r + 3r Combine like terms: -3r + 3r = 0 -7 + 6r = 4 + 0 -7 + 6r = 4 Add '7' to each side of the equation. -7 + 7 + 6r = 4 + 7 Combine like terms: -7 + 7 = 0 0 + 6r = 4 + 7 6r = 4 + 7 Combine like terms: 4 + 7 = 11 6r = 11 Divide each side by '6'. r = 1.833333333 Simplifying r = 1.833333333
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