TOLONG DI JAWAB .....PAKAI CARA BUATNYA...MKS 2 ( y + 3 ) = 5 ( y - 1 ) - 7 ( y - 3 ) =..............

2(y + 3) = 5(y - 1) - 7(y - 3)
2y + 6 = 5y - 5 - 7y + 21
2y - 5y + 7y = -6 - 5 + 21
(2 - 5 + 7)y = 21 - 11
4y = 10
y = 10/4
y = 5/2

2(y+3) = 5(y-1)-7(y-3)
2y+6 = 5y-5-7y+21
2y+6 = 5y-7y-5+21
2y+6 = -2y+16
2y+2y = 16-6
4y = 10
y = 10/4
y = 5/2

smoga brmanfaat.