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Simplifying 4r + -27 = -48 + r Reorder the terms: -27 + 4r = -48 + r Solving -27 + 4r = -48 + r Solving for variable 'r'. Move all terms containing r to the left, all other terms to the right. Add '-1r' to each side of the equation. -27 + 4r + -1r = -48 + r + -1r Combine like terms: 4r + -1r = 3r -27 + 3r = -48 + r + -1r Combine like terms: r + -1r = 0 -27 + 3r = -48 + 0 -27 + 3r = -48 Add '27' to each side of the equation. -27 + 27 + 3r = -48 + 27 Combine like terms: -27 + 27 = 0 0 + 3r = -48 + 27 3r = -48 + 27 Combine like terms: -48 + 27 = -21 3r = -21 Divide each side by '3'. r = -7 Simplifying r = -7
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