<span>1x+1y=-2
2x-3y=-9
x = -2 - y
substitute x = -2 - y into </span>2x-3y=-9
2x-3y=-9
2(-2 - y)-3y=-9
-4 - 2y - 3y = -9
-4 - 5y = - 9
5y =5
y = 1
x = -2 - y
x = -2 - 1
x = -3
answer (-3,1)
The answer you are looking for is C my friend
1/2u - 3 x u
2u x u = 2u
answer 2u - 3
Answer:
- Cameron is 13 and Avery is 8 years old
Step-by-step explanation:
Let Cameron's age be x and Avery's age be y.
<u>The difference is 5 and the product is 104:</u>
<u>Solve by substitution:</u>
- xy = 104
- y(y + 5) = 104
- y² + 5y - 104 = 0
- y = (- 5 ± √(5² + 4*104))/2 = (- 5 ± √441)/2 = ( - 5 ± 21)/2
<u>Taking the positive root as age can't be negative:</u>
<u>Find x:</u>