Question

2x+y=10, x-y=-1,x-z=2,x+y+z=8 find value x, y, z

Answer 1

Hey buddy here is ur solution !!.

2x + y = 10 ------(1)
x - y = -1 ------- ( Multiply whole eq by 2)
2x -2y = -2 -------(3)

By elimination method

2x + y = 10
2x - 2y = -2
change sign
-2x + 2y = 2

So we will get
3y =12
y = 12/3
y = 4

Now put the value of y in eq (2)
x - y = -1
x - 4 = -1
x = 4 - 1
x = 3



Hope u like my process !!



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