First you need to get x on one side of the equation and to do that subtract 2a from both sides.
28 + 2a = 5a + 7
-2a -2a
28=3a+7
Then we need to get a alone by subtracting 7 on both sides.
28=3a+7
-7 -7
21=3a
Finally divide each side by 3 and you should get a = 7. Hope this helps!
Answer:
1/3 ig
Step-by-step explanation:
Y = |x| translated 1 unit left and 2 units up gives the equation
y = |x + 1| + 2
Knowing the GCF and LCM helps me when me add and subtract and multiply fractions by breaking the numbers in to 2 different sections and looking at my table of contents
They own a total of 120 CDs. Ella's CD is 40 while Paolo's CD is 80.
Given:
Ella's ratio of rock music to total CDs = 25/40
Paolo's ratio of rock music to total CDs = 50/x
25/40 = 50/x
25x = 40*50
25x = 2000
25x/25 = 2000/25
x = 80
Total CDs
Ella = 40
Paolo = 80
Total CDs = 120
