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3. determine whether the system of linear equations below has one solut…

Question

  1. determine whether the system of linear equations below has one solution, infinitely many solutions, or no solution. if the system has a solution, find the solution and write it as an ordered pair (x, y).

32x - y = 19
y = 32x - 4

  1. determine whether the system of linear equations below has one solution, infinitely many solutions, or no solution. if the system has a solution, find the solution and write it as an ordered pair (x, y).

x + 2y = 7
y = 2x - 4

  1. determine whether the system of linear equations below has one solution, infinitely many solutions, or no solution. if the system has a solution, find the solution and write it as an ordered pair (x, y)

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

Explanation:

Response
Problem 3

Step1: Substitute \( y = 32x - 4 \) into \( 32x - y = 19 \)

Substitute \( y \) in the first equation: \( 32x - (32x - 4) = 19 \)

Step2: Simplify the equation

Simplify: \( 32x - 32x + 4 = 19 \) → \( 4 = 19 \) (which is false)

Step1: Substitute \( y = 2x - 4 \) into \( x + 2y = 7 \)

Substitute \( y \) in the first equation: \( x + 2(2x - 4) = 7 \)

Step2: Expand and simplify

Expand: \( x + 4x - 8 = 7 \) → \( 5x - 8 = 7 \)

Step3: Solve for \( x \)

Add 8 to both sides: \( 5x = 15 \) → \( x = 3 \)

Step4: Find \( y \) using \( y = 2x - 4 \)

Substitute \( x = 3 \): \( y = 2(3) - 4 = 2 \)

Step1: Substitute \( y = -2x + 2 \) into \( -3x + 3y = -3 \)

Substitute \( y \) in the first equation: \( -3x + 3(-2x + 2) = -3 \)

Step2: Expand and simplify

Expand: \( -3x - 6x + 6 = -3 \) → \( -9x + 6 = -3 \)

Step3: Solve for \( x \)

Subtract 6: \( -9x = -9 \) → \( x = 1 \)

Step4: Find \( y \) using \( y = -2x + 2 \)

Substitute \( x = 1 \): \( y = -2(1) + 2 = 0 \)

Answer:

No solution

Problem 4