Question

the sum of two numbers is 10 and the difference is 4 what are the two numbers

Answer 1

Answer:

let the two numbers be x,y

according to the question,

x+y=10.......(i)

x-y=4.......(ii)

by substituting equation (i) & (ii)

2x = 14

x=7

putting the vale of x in equation (i)

y=10-7

y= 3

Answer 2

X+y=10
X-y=4

So by elimination method
X+y=10
X-y=4
______
0+2y=6
Y=3


X+y=10
X+3=10
X=7


Hence answer is x=7 and y=3




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