Substitution: Systems of Equations

Solve this system of equations
y=8x-5
y=2x+19

• (1,3)
• (2.4, 23.8)
• (2.5,15)
• (4,27)

Tags

CCSS.HSA.REI.C.6

CCSS.HSA.REI.D.11

Solve this system of equations
2x+y=9
y=5x+2

• (1,7)
• (2,5)
• (-1,-3)
• (5,-1)

Tags

CCSS.HSA.REI.C.6

CCSS.HSA.REI.D.11

Solve the system of equations.
y = 4x + 1
3x + 2y = 13

• (1, 5)
• (5, 1)
• (0.25, 2)
• ∅

Tags

CCSS.8.EE.C.8B

CCSS.HSA.REI.C.6

Solve the system of equation using substitution.

8x + 4y = 12

y = -2x + 3

• (0,3)

• (3,0)

• No solution(parallel lines)

• All real solutions

Tags

CCSS.HSA.REI.C.6

CCSS.HSA.REI.D.11

solve for x and y
5x + 3y = 7
y = 4

• (4,1)
• (4,-1)
• (1,4)
• (-1,4)

Tags

CCSS.HSA.REI.C.9

Solve for x and y
y = 2x + 1
y = 4x - 1

• (1,3)
• (-1,-3)
• (-1,3)
• (3,1)

Tags

CCSS.8.EE.C.8B

CCSS.HSA.REI.C.6

Solve the systems of equations:

2x - 1y = 6

y= 2x +3

• All real solutions

• No solution

• (3, 2)

• (0,0)

Tags

CCSS.HSA.REI.C.6

CCSS.HSA.REI.D.11

Solve the system of equations:

x= 2y-1

7x +y =8

• (1,1)

• No solution

• (2, 3)

• (1, -1)

Tags

CCSS.HSA.REI.C.6

Homework 3

Solve the system using substitution or elimination or the given graph.

   2x - y =3

5x + y = 32

x=​ (a)  

y=​ (b)  

• 5
• 7
• 1
• -2
• -7
• 6
• 3
• -5