Answer:
(6, 4)
Step-by-step explanation:
R(2,4)=(2+4, 4)=(6, 4)
Set it up algebraically
3 times a number so 3x where x = the mystery number
times 7 so 3x*7
and it equals 63 so,
3x*7=63
this can be further simplified to
21x=63
then just divide both side by 21 to get your answer
(21/21)x=(63/21)
so x=3
Answer:
help
Step-by-step explanation:
Answer: 
<u>Step-by-step explanation:</u>


Insert x = 13 and y = 1:
x² + 2hxy + 12y² = 0
(13)² + 2(13)(1) + 12(1)² = 0
169 + 26h + 12 = 0
26h + 181 = 0
26h = -181



