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Simplifying -7r + -6.7 + 2.9r + 1.9r + 2 = 0 Reorder the terms: -6.7 + 2 + -7r + 2.9r + 1.9r = 0 Combine like terms: -6.7 + 2 = -4.7 -4.7 + -7r + 2.9r + 1.9r = 0 Combine like terms: -7r + 2.9r = -4.1r -4.7 + -4.1r + 1.9r = 0 Combine like terms: -4.1r + 1.9r = -2.2r -4.7 + -2.2r = 0 Solving -4.7 + -2.2r = 0 Solving for variable 'r'. Move all terms containing r to the left, all other terms to the right. Add '4.7' to each side of the equation. -4.7 + 4.7 + -2.2r = 0 + 4.7 Combine like terms: -4.7 + 4.7 = 0.0 0.0 + -2.2r = 0 + 4.7 -2.2r = 0 + 4.7 Combine like terms: 0 + 4.7 = 4.7 -2.2r = 4.7 Divide each side by '-2.2'. r = -2.136363636 Simplifying r = -2.136363636
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