if x and y are two 3 digit numbers such that x+y = 220 and difference between x and y if 20 then find the number
Answers
Answered by
36
x+y=220
x-y=20
2x=240
x=120
y=100
x-y=20
2x=240
x=120
y=100
paras86:
sorry not helpful
Answered by
46
x+y=220 -------- 1
x-y=20 ---------2
equation 1+2
2x=240
x = 120
substituting x in 1
120+y=220
y=220-120
=100
x-y=20 ---------2
equation 1+2
2x=240
x = 120
substituting x in 1
120+y=220
y=220-120
=100
Similar questions