# Intermediate Algebra

Solve using elimination method. If the system has no system or infinite number of solutions, state this. Please show all work. I need to show how I came about my answer. I need this as soon as possible please. I would appreciate any and all help!!

2x+2y=20

2x-2y=4

1. 👍 0
2. 👎 0
3. 👁 302
1. add the equations, and get...

4x=20 or x=5, then figure y

1. 👍 0
2. 👎 0
👨‍🏫
bobpursley
2. 2x+2y=20
2x-2y=4
_________
4y= 16

y=16
2x+2(40)=20
2x+8=20
2x=12
x=6
(x,y)= (6,4)

Is this correct???

1. 👍 0
2. 👎 0
3. how would one know whether the answer is correct?

Plug your values for x and y into both equations and see whether the equations hold.

In this case, your answer is correct.

1. 👍 0
2. 👎 0

## Similar Questions

1. ### Algebra Help

1. Verify that (-4, 12) is the solution to the system. Show work to justify your answer 2x+y=5 -5x-2y=-6 2. Solve the system by graphing. State the solution. x + y =2 2y – x = 10 3. Solve the system by substitution. State

2. ### Math

If a system has an infinite number of solutions, use set-builder notation to write the solution set. If a system has no solution, state this. 6x − 2y = 2, 9x − 3y = 1

3. ### math

If you try to solve a linear system by the substitution method and get the result 0 = 8, what does this mean? A. The system has one solution, (0,8). B.The system has one solution, (8,0). C.The system has no solutions. D.The system

4. ### Math

Solve the system of equations using the addition (elimination) method. If the answer is a unique solution, present it as an ordered pair: (x, y). If not, specify whether the answer is "no solution" or "infinitely many solutions"

1. ### algebra

Solve using the elimination method. Show your work. If the system has no solution or an infinite number of solutions, state this. -8x – 2y = -28 -3x + 5y = 47

2. ### Algebra/Elimination method

Solve using the elimination method. If the system has no solution or an infinite number of solutions, state this. -27x - 18y = -180 9x + 6y = 60

3. ### algebra

Solve each system graphically. If a system has an infinite number of solutions, use set builder notation to write the solution set. If a system has no solution, state this. x + y = 6 x - y = 4 I'm lost, Please Help!! Thank you

4. ### algebra

solve using the subsitution method 4x+4y=36 4x+4y=12 If the system has no solution or an infinite number of solutions, please help me understand it.

1. ### math

How many solutions does the following system have: 2x + 5y = 10 3x + 6y = 12 Explain how to determine the number of solutions without solving the system. Then apply elimination, and interpret the resulting equation.

2. ### Algebra

Solving system of linear equations by using the apropiate method name the method and the x,y coordinates 1)X=4y+8 2x-8y=-3 2)3x-7y=6 elimination method 2x+7y=4 (2,0) 3)5x-2y=12 elimination method 3x-2y=-2 (7,23/2) 4)9x-8y=42

3. ### Linear Equations

Solve using the elimination method. If the system has no solution or an infinite number of solutions, state this. 10x - y = 12.5 3x + y = 7

4. ### math

1. What is the solution of the system? −x+2y = 4 −4x+y = −5 2. How many solutions does the system have? −2x+y = 3 4y−4 =x 3. How many solutions does the system have? 3x+y= 5 −2y=6x − 10 4. How many solutions does the