Answer
b
Step-by-step explanation:
Last one D
The solution is X=10.
Answer:
(7,42)
Imput the 6x for the Y:
6x=3x+21
move the variable to the left
6x-3x=21
collect like terms:
3x=21
divide both sides by 3x and youll get this for X
x=7
Imput x=7 into the equation
Y=6x7
solve:
y=42
21.1m^3
