Question

solve by elimination method. 1. x+2y+1=0 and 2x-3y-12=0​

Answer 1

Given:-

•eq-(1)→x+2y+1=0

•eq-(2)→2x-3y-12=0

To find:-

The value of x and y?

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♦Answer:-

*Multiply eq-(1) by 2*

We get,

→2x+4y+2=0-(3)

Now,

*Add Eq-(3)&(2)*

•Refer Attachment for addition•

we get, y=2-(4)

•Using eq-(4) in eq-(1) or eq(2)•

*I prefer using in eq-(1)*

→x+2×2=-1

→x=-1-4

→x=-5

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★x=-5★

and

★y=2★

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Answer 2

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