Question

0.2x +0.3y = 1.3
0.4 x + 0.5 y = 2.3 please solve substitution method​

Answer 1

Answer:

0.2x+0.3y=1.3. .... (1)

0.4x+0.5y=2.3. .....(2)

multiply by 10 in equation (1) and (2) we get

2x+3y=13 ..... (3)

4x+5y=23 .....(4)

by (3) we get x=13-3y/2. .... (5)

substitute the value of x in (4) we get

4×(13-3y/2)+5y=23

26-6y+5y=23

26-y=23

y=3

substitute y=3 in (5)

x=(13-3×3)/2

13-9/2

4/2=2

by using substitution method we get

x=2 and y=3

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Answer 2

Step - by - step explanation