Solving Systems of Linear Equations:
Substitution: Assignment/ Solved.
The value of x in this system of equations is 1.
3x + y = 9
y = -4x + 10
Substitute the value of y in the first equation:
Combine like terms:
Page 1 of 6
, Apply the subtraction property of equality:
Apply the division property of equality:
1. 3x + (-4x + 10) = 9
2. -x + 10 = 9
3. -x = -1
4. x = 1
What is the value of y?
y= - Answer: 6
Vineet solved a system of equations by substitution. In his work, he
substituted an expression for one of the variables and solved for the
value of the other. This resulted in the equation 7 = 9. What can Vineet
conclude? - Answer: B. The system of equations does not have a
solution.
The volleyball team at West View High School is comparing T-shirt
companies where they can purchase their practice shirts. The graph
Page 2 of 6
Substitution: Assignment/ Solved.
The value of x in this system of equations is 1.
3x + y = 9
y = -4x + 10
Substitute the value of y in the first equation:
Combine like terms:
Page 1 of 6
, Apply the subtraction property of equality:
Apply the division property of equality:
1. 3x + (-4x + 10) = 9
2. -x + 10 = 9
3. -x = -1
4. x = 1
What is the value of y?
y= - Answer: 6
Vineet solved a system of equations by substitution. In his work, he
substituted an expression for one of the variables and solved for the
value of the other. This resulted in the equation 7 = 9. What can Vineet
conclude? - Answer: B. The system of equations does not have a
solution.
The volleyball team at West View High School is comparing T-shirt
companies where they can purchase their practice shirts. The graph
Page 2 of 6
