Solve the following pair of linear equation using subsitution method
X+2y=-1
2x-3y=13
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Anonymous:
hey mohit doing good hnn
keep it up but this is incomplete
thank u friend ya i was in a hurry to answer
its ok keep it up :)
thanx
Answered by
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Hi friend,
x+2y=-1_____________(1)
2x-3y=13____________(2)
In equation (1) x=-1-2y
put value of x in equation (2)
we got 2(-1-2y)-3y=13
-2-4y-3y=13
-2-7y=13
-7y=15
y=-15/7
x= -1-2(-15/7)
x=-1+30/7
x=-7+30/7
x=23/7
x+2y=-1_____________(1)
2x-3y=13____________(2)
In equation (1) x=-1-2y
put value of x in equation (2)
we got 2(-1-2y)-3y=13
-2-4y-3y=13
-2-7y=13
-7y=15
y=-15/7
x= -1-2(-15/7)
x=-1+30/7
x=-7+30/7
x=23/7
Thank u
welcome:)
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