x = 15 + 4y that is what I got out of it
Answer:

Step-by-step explanation:
Subtract v from both sides

Simplify

Switch sides

Group like terms

Subtract the numbers: 2 - 42 = -40

Add 40 to both sides

Simplify

Divide both sides by 7

Simplify
➤ 
Answer: its the first one "opposite sides with equal length"
<u>Comment</u>
If I don't know what was before the comma in M(, –1) I can't solve this
You add $5.38 & $15.95, which equals $21.33. Then subtract $21.33 from $38.12. Your answer is $16.79. That's how much Shane spent on the book.