Answer:
-7
Step-by-step explanation:
8=r+15
-15 -15
-7=r
check
8=r+15
substitute
8=-7+15
8=8 check
1) let say a + b = -16
than 3times larger equal smaller can be represent by 3a = b.
now sub 3a into the b of the equation and simplify you will get 4a = -16 where a = -4 and a is the larger nymber since b will =-12 which is smaller than a
6 full batches.
Divide 5 by 3/4 (or .75 for a calculator)
You get 6.667
Round down
6
Good luck!