jawablah menggunakan metode substitusi a. 2x+3y=5 4x-y=3 b. y=x-4 y=4x-10 tolong yaa besok dikumpul.. :)

a) 2x + 3y = 5
2x = - 3y + 5
4x - y = 3
2(-3y + 5) - y = 3
- 6y + 10 - y = 3
- 7y = - 10 + 3
- 7y = - 7
y = 1
2x = - 3y + 5
2x = - 3(1) + 5
2x = - 3 + 5
2x = 2
x = 1
hp = {1,1}

b) y = x - 4
y = 4x - 10
y - 4x = - 10
(x - 4) - 4x = - 10
- 3x = - 10 + 4
- 3x = - 6
x = 2
y = x - 4
y = 2 - 4
y = - 2
HP = {2,-2}