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Simplifying 4p + 20q + 28r = 0 Solving 4p + 20q + 28r = 0 Solving for variable 'p'. Move all terms containing p to the left, all other terms to the right. Add '-20q' to each side of the equation. 4p + 20q + -20q + 28r = 0 + -20q Combine like terms: 20q + -20q = 0 4p + 0 + 28r = 0 + -20q 4p + 28r = 0 + -20q Remove the zero: 4p + 28r = -20q Add '-28r' to each side of the equation. 4p + 28r + -28r = -20q + -28r Combine like terms: 28r + -28r = 0 4p + 0 = -20q + -28r 4p = -20q + -28r Divide each side by '4'. p = -5q + -7r Simplifying p = -5q + -7r
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