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Simplifying 7x2 + -14r + 7 = 0 Reorder the terms: 7 + -14r + 7x2 = 0 Solving 7 + -14r + 7x2 = 0 Solving for variable 'r'. Move all terms containing r to the left, all other terms to the right. Add '-7' to each side of the equation. 7 + -14r + -7 + 7x2 = 0 + -7 Reorder the terms: 7 + -7 + -14r + 7x2 = 0 + -7 Combine like terms: 7 + -7 = 0 0 + -14r + 7x2 = 0 + -7 -14r + 7x2 = 0 + -7 Combine like terms: 0 + -7 = -7 -14r + 7x2 = -7 Add '-7x2' to each side of the equation. -14r + 7x2 + -7x2 = -7 + -7x2 Combine like terms: 7x2 + -7x2 = 0 -14r + 0 = -7 + -7x2 -14r = -7 + -7x2 Divide each side by '-14'. r = 0.5 + 0.5x2 Simplifying r = 0.5 + 0.5x2
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