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Simplifying 38 + -7r = 3(6 + -4) Combine like terms: 6 + -4 = 2 38 + -7r = 3(2) Multiply 3 * 2 38 + -7r = 6 Solving 38 + -7r = 6 Solving for variable 'r'. Move all terms containing r to the left, all other terms to the right. Add '-38' to each side of the equation. 38 + -38 + -7r = 6 + -38 Combine like terms: 38 + -38 = 0 0 + -7r = 6 + -38 -7r = 6 + -38 Combine like terms: 6 + -38 = -32 -7r = -32 Divide each side by '-7'. r = 4.571428571 Simplifying r = 4.571428571
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