Answer:
r=-3
Step-by-step explanation:
−18=9r+9
Step 2: Flip the equation.
9r+9=−18
Step 3: Subtract 9 from both sides.
9r+9−9=−18−9
9r=−27
Step 4: Divide both sides by 9.
9r /9 =-27/9
Answer: 22/21
2 cakes : 7 donuts → 6 cakes : 21 donuts
3 cakes : 11 brownies → 6 cakes : 22 brownies
22 brownies : 21 donuts
Now, simply write this as a fraction. 22/21
the answer is C
3/10
(60y-18)=2(8-16)
60y-18=16-16
60y-18=0
60y=18 /:60
y= 18/60=3/10
your answer is (A.)
rr<span>²r=58r<span>²