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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.

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 class=

Sagot :

mhanifa

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)

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