1.2 X + 2.8 Y =4 , 2.8 X + 1.2 Y = 4. find in elimination method
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Step-by-step explanation:
1.2X+2.8Y=4...(1)
2.8X+1.2Y=4...(2)
Multiply (1) by 2.8 and (2) by 1.2
3.36X+7.84Y=11.2...(1)
3.36X+1.44Y=4.8...(2)
Subtract (1) from(2) we get
(7.84-1.44)Y=11.2-4.8=>6.4Y=6.4=>
Y=6.4/6.4=1. Substitute Y=1 in equation(1) =>1.2X+2.8(1)=1 =>1.2X=4-2.8=1.2 =>X=1. Hence the solution for this system of linear equations given above is X=1 and Y=1. Hope it helps you.
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