solve the pair of linear equation graphically 2x+3y=12and x-y= 1
Answers
Answered by
1
Step-by-step explanation:
2x+3y=12--------equ. no. 1
x-y=1 ---------equ. no. 2
Multiply equ. 2 by 2
2x-2y = 2----------equ. no. 3
subtract equ. 1 by 2
we will get the answer
- :. y=2
now,
put y=2 in equ. 2
x-2=1
x=2+1
:. x=3
Answered by
3
X-y =-1..........(1)
3x+2y=12.......(2)
For equations (1)
x-y=-1
X=-1+y
X=-1+0=0
X=-1+1=0
x=-1+2=1
3x=12-2y
X=12-2y/3
X=12-2×0/3=4
X=12-2×3/3=2
X=12-2×-3/3=6
Hope it helps you
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