Y=21
Step-by-step explanation:
12x+10y=30
-4(3x+2y=-3)
-12-8y=12
2y=42
y=21
ok
step-by-step explanation:
really really sorry if i'm
-12 -5(x + 4) = 3x
-12 - 5x - 20 = 3x
-12 - 20 - 5x = 3x
-32 - 5x = 3x
+ 5x + 5x
-32 = 8x
8 8
- 4= x