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Simplifying 7v2 + -42r + -49 = 0 Reorder the terms: -49 + -42r + 7v2 = 0 Solving -49 + -42r + 7v2 = 0 Solving for variable 'r'. Move all terms containing r to the left, all other terms to the right. Add '49' to each side of the equation. -49 + -42r + 49 + 7v2 = 0 + 49 Reorder the terms: -49 + 49 + -42r + 7v2 = 0 + 49 Combine like terms: -49 + 49 = 0 0 + -42r + 7v2 = 0 + 49 -42r + 7v2 = 0 + 49 Combine like terms: 0 + 49 = 49 -42r + 7v2 = 49 Add '-7v2' to each side of the equation. -42r + 7v2 + -7v2 = 49 + -7v2 Combine like terms: 7v2 + -7v2 = 0 -42r + 0 = 49 + -7v2 -42r = 49 + -7v2 Divide each side by '-42'. r = -1.166666667 + 0.1666666667v2 Simplifying r = -1.166666667 + 0.1666666667v2
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