Question

Solve the system by substitution. y=4x-9 y=x-3

Answer 1

X-3=4x-9
X=4x-9+3
X=4x-6
X+6=4x |-x
6=3x |:3
X=2

Answer 2

Answer:

(2, -1)

Step-by-step explanation:

Given

• y = 4x - 9
• y = x - 3

Solving

• Substitute the value of one of the y values from the other equation
• 4x - 9 = x - 3
• 3x = 6
• x = 2
• y = 2 - 3
• y = -1
• ⇒ (2, -1)