Simpliflyed answer would be 3a -21
Answer:
8/38
Step-by-step explanation:
you calculate how many socks and then take how many the blue ones are
Answer:
x = 3
Step-by-step explanation:
x + 9x + 5 = 35
=> x + 9x = 35 - 5
=> x + 9x = 30
=> 10x = 30
=> x = 30/10
=> x = 3
Answer:
(3, 0) and (−1, −8)
Equation's:
<h3>
Substitute equation 2 into 1</h3>
2x − (x² − 9) = 6
2x - x² + 9 = 6
-x² + 2x + 9 - 6 = 0
-x² + 2x + 3 = 0
x² - 2x - 3 = 0
x² - 3x + x - 3 = 0
x(x - 3) + 1(x - 3) = 0
(x + 1)(x - 3) = 0
x = -1, x = 3
<h3>Find values for y</h3>
If x = -1, then y = (-1)² - 9 = -8
If x = 3, then y = (3)² - 9 = 0
<h3>Solution Set:</h3>
(x, y) = (-1, -8), (3, 0)
9/-7 x -4=
36/7
Hope it helps