Solve Systems Using Substitution

7. Solve the system of equations using substitution method: 4x + y = 23, y - x = 3

• x = 3, y = 6

• x = 4, y = 7

• x = 6, y = 9

• x = 5, y = 8

Tags

CCSS.8.EE.C.8B

CCSS.HSA.REI.C.6

Determine the values of x and y by using substitution method for the system of equations: 6x + 2y = 44, y = 3x - 2

• x = 8, y = 20

• x = 5, y = 12

• x = 2, y = 6

• x = 4, y = 10

Tags

CCSS.8.EE.C.8B

CCSS.HSA.REI.C.6

10. Solve the following system of equations using substitution method: 3x + 2y = 29, y = 2x - 3

• x = 2, y = 5

• x = 6, y = 8

• x = 5, y = 7

• x = 3, y = 4

Tags

CCSS.8.EE.C.8B

CCSS.HSA.REI.C.6

Solve this system of equations:
2x + 2y = 12
y = 2x

• (2, 2)

• (3, 6)

• (4, 2)

• (2, 4)

Tags

CCSS.8.EE.C.8B

CCSS.HSA.REI.C.6

Solve this system using substitution:
3x + 4y = 15
y = 3

• (3, 1)

• (4, 3)

• (3, 4)

• (1, 3)

Tags

CCSS.8.EE.C.8B

CCSS.HSA.REI.C.6

Jess correctly graphs a system of equations on her calculator but sees only one line as a result. What does this mean?

• The system has one solution

• The system has no solutions

• The system has infinite solutions

• The calculator's broken

Tags

CCSS.8.EE.C.8A

Which of the following could be a first step when solving using substitution for the given system of equations?

Tags

CCSS.8.EE.C.8B

CCSS.HSA.REI.C.6

Given the following sytem of linear equations, If I solved the second equation for x, which would be correct steps for solving the system using substitution?

Tags

CCSS.8.EE.C.8B

CCSS.HSA.REI.C.6

What is the initial step when using the Substitution method to solve a system of equations?

• Ensure both equations are in point-slope form.

• Ensure one equation is isolated for a variable.

• Ensure both equations are in standard form.

Tags

CCSS.8.EE.C.8B

CCSS.HSA.REI.C.6

• Student C

• Student D

• Neither student made the correct substitution

Tags

CCSS.8.EE.C.8B

CCSS.HSA.REI.C.6