Question

What's the method for this equation x=7 - 3y, 2x - 3y= -4

Answer 1

Step-by-step explanation:

x=7-3y

x+3y-7=0---(1)

2x-3y=-4

2x-3y+4=0---(2)

by elimination method

from 1 and 2

x=1

put x=1 in eq 1

x+3y-7=0

1-7=-3y

-6=-3y

y=2

(or)

you can use subtitution method

put x=7-3y. in 2x-3y=-4

2(7-3y)-3y=-4

14-6y-3y=-4

14+4=9y

y=2

x=1

as per your question it needs subtitution method