Andy C. answered • 10/07/18

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77 - x = 3(37-x)

77 - x = 111 - 3x

77 - 111 = -3x + x

-34 = -2x

x = 17

17 years ago , they were 60 and 20

Snyder D.

asked • 10/07/18Age Poblems

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Andy C. answered • 10/07/18

Tutor

4.9
(27)
Math/Physics Tutor

77 - x = 3(37-x)

77 - x = 111 - 3x

77 - 111 = -3x + x

-34 = -2x

x = 17

17 years ago , they were 60 and 20

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