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# what?

a1x+b1y=c1

a2x+b2y=c2

Posted in Math, asked by nickson, 6 years ago. 1678 hits.

## 0

given equations,a1X+b1Y=c1---------(1)

a2X+b2Y=c2---------(2)

multifly the eqn(1) with b2 and eqn(2) with b1 then,

we will get, a1b2X+b1b2Y=b2c1-------(3)

a2b1X+b1b2Y=b1c2--------(4)

substract equation (3)&(4) then we will get, = a1b2X-a2b1X=b2c1-b1c2

= (a1b2-a2b1)x=b2c1-b1c2

=X=b2c1-b1c2/a1b2-a2b1

multifly eqn(1) with a2 and eqn(2)with  a1 then

we will get                                    a1a2X+a2b1Y=c1a2------(5)

a1a2X +a1b2Y=c2 a1----(6)

substract eqn(5)&(6) then,   a2b1Y-a1b2Y=c1a2-c2a1

=(a2b1-a1b2)y=c1a2-c2a1

=y=c1a2-c2a1/a2c1-a1c2

Venkat Nagendra Thati - 6 years ago
Ask Venkat Nagendra Thati for further help.
a1 then
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