Question

Directions: Choose the letter of the correct answer.

Solve the system of equation y=4x-5 and y=3x
A. y=10, x=13
B.y=5, x=15
C. y=7, x=6

Solve the system of
equation -4x+5y=35 and y=3x
A. X-15 y=19
B. x-14 y=11
C.x=45 y=12​

Answer 1

Explanation:

1) y = 3x -------------(I)

y = 4x - 5 -------------(II)

Plug in y= 3x in equation (II)

3x = 4x - 5

3x + 5 = 4x

5 = 4x - 3x

5 = x

x= 5

Plug in s = 5 in equation (I)

y = 3*5 = 15

x = 5

y = 15