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Simplifying 7 + 4r = 19 Solving 7 + 4r = 19 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 + -7 + 4r = 19 + -7 Combine like terms: 7 + -7 = 0 0 + 4r = 19 + -7 4r = 19 + -7 Combine like terms: 19 + -7 = 12 4r = 12 Divide each side by '4'. r = 3 Simplifying r = 3
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