Question

if 2x+y=7 and x+2y=5 then find the value of x+y​

Answer 1

Answer:

4

Explanation:

X=3,y=3( first multiple ×2 in 2 equation and then minus equation 1 from equation 2 and get y that is 3 and put its value in equation 1 and find X that is 1 so X+y=4

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Answer 2

Answer:

X + Y = 2 + 3 = 5

X=2. Y=3

Explanation:

2X+Y=7     ---  1

MULTIPLY  X +2Y WITH 2

2X + 2Y = 10

2X +  Y  = 7

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2Y - Y = 3

Y = 3

2X + (3) = 7

2X = 7-3 = 4

2X = 4

THERFORE X = 2