Question

if

2ox+10y = 49, 10x + 20y=41 then find x+y.​

Answer 1

Answer:

ADD BOTH THE EQUATIONS

30X + 30Y = 90

TAKING 3 COMMON

X + Y = 30

Answer 2

Answer:

X+Y=

1.9+1.1=3

Step-by-step explanation:

10x+20y=41 (multiple with 2)

20x+10y=49

(20x+40y=82) - (20x+10y=49)

=0x+30y=33

30y=33

y=33/30

y=1.1

(apply y in any equation)

20x+10y=49

20x+10X1.1=49

20x+11=49

20x=49-11

20x=38

x=38/20

x=1.9

x+y=

1.9+1.1=3

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