Question

Solve by sublimation
18x+5y=9
3x +2y= 4
Plz answer my question

Answer 1

Step-by-step explanation:

subsititution method

18x+5y=9(a)

3x+2y=4(b)

3x=4-2y

x=4-2y/3 subsituting value x in (a)

18(4-2y/3)+5y=9

6(4-2y)+5y=9

24-12y+5y=9

-7y=-15

y=15/7

putting value of y in (b)

x=4-2y/3

x=4-2×15/7/3

x=4-30/7/3

x=28-30/7/3

x=-2/7×3

x=-2/21