the answer is 12x-6u+2 hope this helps
Answer:
x=2 y=-5
Step-by-step explanation:
7x-y=19
2x-3y=19
Multiply the first equation by -3
-3(7x-y)=19*-3
-21x +3y =-57
Add this to the second equation to eliminate y
-21x +3y =-57
2x-3y=19
-----------------------
-19x = -38
Divide by -19
-19x/-19 = -38/-19
x = 2
Now we need to find y
7x-y = 19
7(2) -y =19
14 -y =19
Subtract 14 from each side
14-14 -y=19-14
-y=5
Multiply by -1
y = -5
I think the answer is N-4
1. A = (1/2)bh = (1/2) * 30 ft * 12 ft = 180 ft^2
2. 21/25 * 100 = 84%
3. $13.26/(3 boxes) = $4.42/box
