Answer:
y = 11
Step-by-step explanation:
Solve for y
12y - 40 - 4y = 6y - 18
8y -40 = 6y - 18
8y - 6y - 40 = -18
2y - 40 = -18 ( the justification for step 2 is to isolate y on one side of the equation in order to solve for y )
2y - 40 + 40 = 40 - 18
2y = 22
2y/2 = 22/2
Check :
12(11) - 40 - 4(11) = 6 (11) - 18
132 - 40 - 44 = 66 - 18
48= 48
Answer: is B
option (D) 28 √6 is the answer
Explanation :
p =3√6 + 2√24 + 7√54
3√6 + 2√2×2×6+ 7√3×3×6
3√6 +2 ×2√6 + 7 ×3√6
3√6 +4√6 + 21√6
28√6
