Math, asked by yadav386, 1 year ago

2x+3y=31, y-z=4, x+2z=11 then the value of x+y+z?​

Answers

Answered by developerlaravel5
1

Step-by-step explanation:

2^2

Answered by Anonymous
0

Step-by-step explanation:

2x + 3y = 31----(1)

x + 2z = 11 ----(2)

समी.(2) का 2 से गुणा करने पर

2x + 4z = 22 ---(3)

समी. (1) - (3) से

3y - 4z = 9 ----(4)

चूँकि y - z = 4 ----(5)

समी.(5) का 3 से गुणा करने पर

3y - 3z = 12 ---(6)

समी.(6) - (4) से

z = 3

समी.(5) से

y - 3 = 4

y = 7

समी.(1) से

2x + 3(7) = 31

2x + 21 = 31

2x = 10

x = 5

then , x+y+z = 5+7+3

= 15

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