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Simplifying -1.4(-5r + 7) + -0.2r = 0 Reorder the terms: -1.4(7 + -5r) + -0.2r = 0 (7 * -1.4 + -5r * -1.4) + -0.2r = 0 (-9.8 + 7r) + -0.2r = 0 Combine like terms: 7r + -0.2r = 6.8r -9.8 + 6.8r = 0 Solving -9.8 + 6.8r = 0 Solving for variable 'r'. Move all terms containing r to the left, all other terms to the right. Add '9.8' to each side of the equation. -9.8 + 9.8 + 6.8r = 0 + 9.8 Combine like terms: -9.8 + 9.8 = 0.0 0.0 + 6.8r = 0 + 9.8 6.8r = 0 + 9.8 Combine like terms: 0 + 9.8 = 9.8 6.8r = 9.8 Divide each side by '6.8'. r = 1.441176471 Simplifying r = 1.441176471
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