if x and y are to positive number and x+y =660 where is the diffrence between xand y is 20 find value of xand y in statment
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Answer:
X=340
Y=320
Step-by-step explanation:
x+y=660..... 1.
x-y=20.......2.
take eq. 2
x=20+y.......3.
put eq. 3 in eq. 1
(20+y)+y=660
20+2y=660
2y=660-20
2y=640
y=320
put the value of y in eq. 3
x= 340
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