Question

0,2 x +0,3y= 1,3
0.4x + 0,5y - 2,3



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Answer 1

Answer:

Step-by-step explanation:

first multiply both the equation with 10 both the sides to make it easy

we get 2x+3y=13....(1)   and   4x+5y=23...(2)

solving above equations

2(2x+3y)-(4x+5y)=2(13)-23

therefore y=3

substituting y value in(1) we get

2x=13-9

x=2

hope it was of some use

Answer 2

Answer:

x=2 ,y =3

Step-by-step explanation:

0.2x + 0.3y = 1.3 ........ eq1

0.4x + 0.5y = 2.3...........eq2

from eq1:

y =1.3-0.2x / 0.3............ eq3

putting the value in eq2

0.4 0.5(1.3-0.2x/0.3)=2.3

0.12x +0.65-0.10x =0.69

0.02x =0.04

x= 2

putting the value in eq3

y=1.3-0.2(2)/0.3 =0.9/0.3=3