The riddle answer is 24.
A riddle for the number 68 is: 12 more than 14 times 4
if you isolate y in the top equation to get y=5x+6 then you can substiture y for 5x+6 in the bottom equation because thats what y equals
as of now you have -3x+6(5x+6)=-12 but if you use the distrubite property you would get -3x+30x+36=-12
then if you subtract 36 from both sides you would get -3x+30x=-48 then combine like terms to get 27x=-48 then divide both sides by 27 to get
or x≈1.8
Answer:

Step-by-step explanation:
The LCM of 14, 21 and 6 is 42
We require to change the fractions to fractions with a denominator of 42
+
+ 
=
+
+
← add the numerators, leaving the denominator
= 
=
← divide both values by 2
=
← in simplest form
Answer:
I would say A but I'm not sure
Step-by-step explanation:
Sry if I' m wrong <3
Answer:
The answer is B.)
Step-by-step explanation:
Because, 5 x 2 = 10 and 10 - 3 = 7 .