What is x+y=-20 and 6x-5y=-20 with elimination method
1 answer:
Answer:
Step-by-step explanation:
x + y = -20......multiply by -6
6x - 5y = -20
-----------------
-6x - 6y = 120 (result of multiplying by -6)
6x - 5y = -20
---------------add
-11y = 100
y = -100/11 <======
x + y = -20
x + (-100/11) = -20
x - 100/11 = -20
x = -20 + 100/11
x = -220/11 + 100/11
x = - 120/11 <========
solution is : x = -100/11 and y = -120/11 or (-120/11 , -100/11)
You might be interested in
1800 gal converts to 7200 quarts, and divide that by 60 you get 120 quarts of water per second.
Answer: C (x, y) ➔ (0.375x, 0.375y)
Answer:
Answer is 14.
Step-by-step explanation:
f(-2)=3*(-2)^2 - (-2)
=3*4+2
=12+2
=14
Answer:
-41
Step-by-step explanation:
You would replace all x's with -9 and solve.
