<span>x + 3y = –9
3x – 3y = 21
-------------------add
4x = 12
x = 3
substitute x = 3 into </span>x + 3y = –9
3 + 3y = –9
3y = -12
y = -4
Answer
(3, -4) is the solution of the system.
Answer:129-32
Step-by-step explanation:Decreased means subtract from that number, so you are going to subtract the 2 numbers.
Answer:
288in
Step-by-step explanation:
Multiply all numbers
Lengthxwidthxheight
Miles has 3.45 acres of land now. You're welcome.
