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Help! Math question don't understand??!?
Hello, I have been trying to solve this problem for a while now, and I still havent gotten the correct answer! Please help, and explain the steps you've taken to solve it:
a. Solve for y. b. then find the value of y when x=4.
12x-3y=18.
I know the correct answers are: a.'y=4x-6' and b. y=10, but I dont know how to get these answers. 10 points to best answer, thanks!
2 Answers
- ?Lv 57 years agoFavorite Answer
(A)
-3y = -12x + 18
---divide the entire equation by - 3 -----
y = 4x - 6
(B)
Sub in 4 for x:
12(4) - 3y = 18
48 - 3y = 18
-3y = 18 - 48
-3y = -30
y = -30/-3
y = 10
- Anonymous7 years ago
12(4)-3y=18. 48-3y=18. -3y=-48+18. Y=-16-6. Y=-22
