substitution practice

If x=5,find the value of 7x-1

• 34
• 36
• 35

Tags

CCSS.6.EE.A.2C

If y=7,find the value of 2(y+4)

• 11
• 22
• 20

Tags

CCSS.6.EE.A.2C

Solve the system of equations:
y = 4
x + 2y = -24

• one solution (-32, 4)
• one solution (4, -32)
• No solution 

Tags

CCSS.8.EE.C.8B

Solve for x and y
2x − 3y = −1
 y = x − 1

• (-2,-3)
• (0,-1)
• (3,4)
• (4,3)

Tags

CCSS.8.EE.C.8B

CCSS.HSA.REI.C.6

Solve:
y = 2x -11
-3y = -6x -15

• (-1.5,-4)
• (1.5,4)
• No solution (parallel lines)
• Infinitely many solutions

Tags

CCSS.8.EE.C.8B