Substitution Method Algebra

Which of these can be integrated using u-substitution?

• A

• B

• both

• neither

Solve the system of linear equations by substitution.

-5x + 3y = 51

y = 10x - 8​

​ ​ ​ (a)   ​ (b)  

• y = -22

• x = -3

• x = 59/25

• y = 15.6

• x = 3

• y = 22

• x = -8

• y = 4

Solve this system by substitution.

• (1, -4)

• (1, 4)

• (-4, -7)

• (-7, -4)

Solve the following system by substitution.  What is the solution?

• (1, -2)

• (-2, 1)

• (-4, 1)

• (2, 1)

Solve the system of linear equations by substitution.

5x + 2y = 9

x + y = -3

​ ​ ​ (a)   ​ (b)  

• y = -22

• x = -3

• x = 1

• y = -4

• x = 5

• y = -8

• x = -8

• y = 4

Solve the system of equations.

• (-6, 30)

• (-2, 10)

• (44, 39)

• No solution

• Infinite solutions

Which is the correct setup for SUBSTITUTION for the systems:

• 8x+5(-3x-6)=-9

• 8(-3x-6)+5y=-9

• 8x+5y=-3x-6

• y=-3(8x+5y)-6

If x = -3, in the equation -2x + y = 15, what is y? Type in the number.

The solution to the system of equations y = -2x + 5 and y = 2x - 11 is (a)   .

• (4, -3)

• (3, 4)

• (2, 5)

• (1, -1)

x = y - 2
4x + y = 2

• (2,0)

• (0,2)

• (0, -2)

• (-2,0)