2x + y = 3
x = 2y - 1

solve for y in the first equation;
2x + y = 3
y = 3 - 2x

x = 2y - 1
x = 2(3 - 2x) - 1
x = -4x + 5

solve for x;
x = -4x + 5
x + 4x = 5
5x = 5
x = 1

solve for y;
y = 3 - 2x
y = 3 - 2(1)
y = 1

the answer is: x = 1, y = 1

hope this helps, God bless!

8 0

3 years ago

Dexter’s aquarium holds 4.5 gallons of water. He needs to add some chemicals to balance the pH level in the aquarium. However, t

Sati [7]

Answer:

the answer is d 17.1 L

Step-by-step explanation:

8 0

3 years ago

There are 39 chips number from 1 to 39 placed in a barrel one chip is randomly pulled from the barrel what is the probability th

Alex Ar [27]

P (number on chip is 18 or higher) = 22/39