Question 745019
x = one number
x - 12 = other number {one number is 12 less than the other}


x + x - 12 = 72 {sum of the two numbers is 72}
2x - 12 = 72 {combined like terms}
2x = 84 {added 12 to each side}
x = 42 {divided each side by 2}
x - 12 = 30 {substituted 30, in for x, into x - 12}


42 and 30 are the two numbers
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