Since BD and AC are diagonals of rectangle ABCD . ..hence they are equal..
AC = BD
3x+4 = 5x-50
2x = 54
x = 27
Answer: 9 on the x axis and 18 on the y axis
We can eliminate one of the variables to solve for the other variable, as in both equations, y has opposite coefficients. Combine these two equations:

Divide both sides by 2 to get x by itself:

Plug this value into the second equation:

Subtract 123 from both sides to get y by itself:

Malik has
123 domestic stamps and 89 foreign stamps.
(might not be correct and I don't know what it's asking/its confusing)
Answer:
Karen's music library has 11 playlists
Clarann's music library has 29 playlists
Step-by-step explanation:
29+11=40
this is what I did:
I know that Clarann has at least 18,
Karen: 0 1 2 3 4 5 6 7 8 9 10 11
clarann:18 19 20 21 22 23 24 25 26 27 28 29
total: 18 20 22 24 26 28 30 32 34 36 38 40
First let's put in the values.
-8(-2-3·-4)
Solve using PEMDAS
Parentheses (Multiplication)
-8(-2+12)
Parentheses (Addition)
-8 · 10
Multiplication
-80
The answer is -80