Question

PLEASE HELP. WILL GIVE BRAINLIEST AND WORTH 60 POINTS.

Solve each equation using substitution. Answers are on the right and questions are on the left.

Answer 1

Answer:

• Q1. No solution
• Q2. (5, 6)
• Q3. Infinitely many solutions
• Q4. No solution
• Q5. (2, 3)

Step-by-step explanation:

Q1.

• y = -1/3x - 1
• x + 3y = -12

Solution

• x + 3(-1/3x - 1) = -12
• x - x - 3 = -12
• -3 = -12

No solution

Q2

• y = 2x - 4
• y = x + 1

Solution

• 2x - 4 = x + 1
• x = 5
• y = 6

(5, 6)

Q3

• y = -3x + 3
• 6x + 2y = 6

Solution

• 6x + 2(-3x + 3) = 6
• 6x - 6x + 6 = 6
• 6 = 6

Infinitely many solutions

Q4

• - 5x + y = 1
• - 10x + 2y = -2 ⇒ -5x + y = -1

Solution

• 1 = -1

No solution

Q5

• y = 1/2x + 2
• y = x + 1

Solution

• 1/2x + 2 = x + 1
• 1/2x = 1
• x = 2
• y = 3

(2, 3)