The sum of a number and its double is 69. What is the number?
A.) 46.6 B.) 34.5 C.) 23 D.) 20
x = the number
2x = its double {double a number is multiplying by 2} x + 2x = 69 {the sum of a number and its double is 69} 3x = 69 {combined like terms} x = 23 {divided each side by 3} C.) 23 Check  the sum of 23 and its double, 46, is 69 23 + 46 = 69 ☑  Algebra House Comments are closed.

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