Systems of Equations by Substitution

What is the solution?

• No solution

• (0, 2)

• (0, -4)

• (3, -3)

The solution to the system is

• (-2, -8)

• (-8, -2)

• (2, -8)

• No solution

The system's solution occurs at

• (1, 4)

• (4, 1)

• (-4, 1)

• No solution

The solution is:

• (4, 3)

• (3, 4)

• (-4, 3)

• No solution

What is the solution to this system? Solve by substitution.
y= 4x + 3
2x - 3y = 21

• (3,-9)

• (-3,-9)

• (-3,9)

• (0,1)

solve by substitution: y=3x+14
y=-4x

• y=3

• y=1

• y= - 2

• y=4

x – 3y = –6

x = y – 2

x = ​ (a)   y = ​​ (b)  

• 0

• 2

• 1.5

• 7

• 6

• 1

• –5

• –3

• –2

• 10

What is the solution to this system of equations? Choose the correct answer from the drop-down menu to complete the statement. The solution to this system of equations​

• is located at (12, 16)

• is located at (15, 17.5)

• does not exist

• is infinitely many

To solve a system with substitution, we look for ​ (a)   . Then, we ​ (b)   and solve. Once we know that variable, we ​ (c)   .

• a variable equal to a "chunk" of information

• a match for one of the variables

• plug in the "chunk" to the other equation

• subtract e-very-thing

• plug in our answer to find the other

• are done

What is the solution to this system of equations?