Answer: 13
Explanation: 13 = prime
30 = composite
49 = composite
65 = composite
87 = composite
Answer:
19a+27b-54
Step-by-step explanation:
First distribute 7 into the first equation. (4a+3b-6) Multiply each coefficient and the constant by 7.
28a+21b-42
Then do the same for -3 and (3a-2b+4).
-9a+6b-12
Rewrite the equation 28a+21b-42-9a+6b-12.
Combine like terms: 19a+27b-54
So it would be either 1/3 1/4 1/5 ect., ect.