Systems of Equations Elimination Addition Subtraction

2x – 3y = 9

–5x – 3y = 30

Tags

CCSS.8.EE.C.8B

CCSS.HSA.REI.C.6

6x – 2y = 32

4x – 2y = 18

Tags

CCSS.8.EE.C.8B

CCSS.HSA.REI.C.6

7x + 4y = 2

7x + 2y = 8

Tags

CCSS.8.EE.C.8B

CCSS.HSA.REI.C.6

Find the two numbers whose sum is 29 and whose difference is 15.

Tags

CCSS.8.EE.C.8C

What do you call "more than one equation"?

• equivalent

• algebraic expression

• System of equations

• System of inequalities

Tags

CCSS.8.EE.C.8B

CCSS.HSA.REI.C.6

How do you solve a system of equations?

(CLICK ALL THAT APPLY)

• graphing

• elimination

• substitution

• nSolve

• linSolve

Tags

CCSS.8.EE.C.8B

CCSS.HSA.REI.C.6

What type of elimination could you use for this system of equations?

• Addition

• Subtraction

• Simple Multiplication

• Complex Multiplication

Tags

CCSS.8.EE.C.8B

CCSS.HSA.REI.C.6

Solve this system of equations using elimination with addition:

−5𝑥 + 6𝑦 = 4

5𝑥 − 𝑦 = −9

• (-2, 3)

• (2, 0)

• (-2, -1)

• (2, -2)

Tags

CCSS.8.EE.C.8B

CCSS.HSA.REI.C.6

Solve this system of equations. Choose whether to use addition, subtraction, or simple multiplication:

−6𝑥 + 3𝑦 = −24

6𝑥 − 𝑦 = 20

• (-2, 1)

• (-3, 2)

• (3, -2)

• (3, -1)

Tags

CCSS.8.EE.C.8B

CCSS.HSA.REI.C.6

Solve this system of equations. Choose whether to use addition, subtraction, or simple multiplication:

x - 4y = -12

x + 3y = 2

• (4, 2)

• (2, 2)

• (-4, 4)

• (-4, 2)

Tags

CCSS.8.EE.C.8B

CCSS.HSA.REI.C.6