domrhodes domrhodes

02-03-2017
Mathematics

contestada

one number is 7 more than another number. the sum is 23.

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wolf1728 wolf1728

02-03-2017

A) x = Y + 7
B) x + y = 23

A) x - Y = 7
B) x + y = 23 Adding both equations
2x = 30

x = 15
y = 8

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