Review for Quiz Equations and Systems

• All real numbers

• No solution

• No solution

Write the new equation to solve after using the substitution process correctly for the system.

y = 5x - 7

-3x - 2y= -12

• -3(5x - 7) - 2y= -12

• -3x - 2(5x-7) = -12

• -3x -2y = 12(5x-7)

Write the new equation to solve after using the substitution process correctly for the system.

y = x - 1

2x - 3y= -1

• 2(x-1) - 3y= -1

• 2x - 3(x-1) = -1

• 2x -3y = 12(x-1)

Solve:
x = -3y - 17
2x + 3y = -7

• (1, -20)
• (3, 0)
• (-5, -2)
• (10 , -9)

Solve this system by substitution.

• (1, -4)

• (1, 4)

• (-4, -7)

• (-7, -4)

Solve the following systems of equations using substitution:

2y + x = -15

x = 3y

• (-3, -9)

• (-9, -3)

• (-3, 9)

• (9, -3)