Answer:
Have a great day too..... :)
Answer:
Step-by-step explanation:
a=-7
r=21/-7=-3

Answer:
X=-1/2
Y=3/4
Step-by-step explanation:
Multiply both sides by 6
(b-4)/6*6= b-4
b/2*6= 3b
Rewrite the equation
b-4= 3b
Subtract b from both sides
-4=2b
Divide both sides by 2
-2=b
Final answer: b=-2