solution is (- 1, 1 )
given the 2 equations
2x - y = - 3 → (1)
x + y = 0 → (2)
add (1) and (2) term by term to eliminate the term in y
3x = - 3 ( divide both sides by 3 )
x = - 1
substitute x = - 1 in either of the 2 equations and solve for y
(2) : - 1 + y = 0 ( add 1 to both sides )
y = 1
solution is (- 1, 1 )
Answer:
Answer B and F are correct.
Step-by-step explanation:
hope this helps
brainliest appreciated
good luck! have a nice day!
Hey there! I'm happy to help!
Let's have the capacity be c. The tank is currently at 4/5c. We subtract 190 and then we are at 1/6c. Let's set this up as an equation and solve it.
4/5c-190=1/6c
We want to get the c all by itself to see the capacity of the tank. Let's get all of the c values on the left side of the equation and the numbers on the right by using inverse operations.
4/5c-190=1/6c
Add 190 to both sides.
4/5c=1/6+190
Subtract 1/6 from both sides.
19/30c=190
Divide both sides by 19/30.
c=300
So, the capacity of the tank is 300 liters of water.
Have a wonderful day and keep on learning! :D
