Question

4x+3y=15,2x+3y=9 by substituting method

Answer 1

Answer:

Step-by-step explanation:

4x+3y=15 --- I

2x + 3y =9 -- II

using equ II

2x = 9-3y

x = 9-3y/2

subsituting above x value in equ -- I

4*(9-3y/2) +3y =15

18-6y+3y =15

18-3y=15

18-15 = 3y

3y = 3

y = 3/3

y = 1

now substituting y = 1 in equ II

2x+3*(1)=9

2x+3=9

2x=9-3

2x=6

x=6/2

x=3

So, Y=1 and X=3