4 + 2h < -3
2h < -7
h < -3.5
x ∈ (-∞, -3.5)
Answer:
(3d+3) + (3d+3)
Step-by-step explanation:
Answer:
x=-12,y=3
Step-by-step explanation:
1/2x+6y=12
y=x+15
since y=x+15
substitute y in first equation, we have
1/2x+6(x+15)=12
open the bracket
1/2x+6x+90=12
1/2x+6x=12-90
x/2+6x= -78
13x/2=-78
13x=2×-78
x=-12
Now x=-12, put x=-12 in the second equation, we have
y=x+15
y=-12+15
y=3
hope it helps
There were 4 friends you divide 20 by 5 and you get 4 friends