Question

3x-y=3
7x+2y=20
solve by substitution method ​

Answer 1

Answer:

refer in attachment

hope it helps u m@te

Thankuuuu

Answer 2

3x - y = 3

-y = 3 - 3x

y = 3x - 3 --(1)

7x + 2y = 20

7x + 2(3x - 3) = 20 (using (1))

7x + 6x - 6 = 20

13x = 26

x = 26/13

x = 2 --(2)

we know that

3x - y = 3

3(2) - y = 3 (using (2))

6 - y = 3

y = 6 -3

y = 3

therefore x = 2 and y = 3

I hope it Helps :)