Question
3x+4y=48
6x+2y=60
1. Choose the best method to solve by looking at the way the equations are set up for you:
graphing, elimination, substitution
2. Using the best method, how could you get the x variables to cancel out? Divide the bottom equation by 2.
Divide the top equation by 4, Multiply the top equation x -2 Multiply the bottom equation x -2.
3. After you complete step 2, what would your top equation be?
x+2y=46, -6x+4y=96, -6x-8y=-96, 3x+y=30
4. Line them up and add the equations together to get: -6=-36, 8y=96, 6y=-96, -8y=-96
5. Solve for y.
6. Solve for x.
6x+2y=60
1. Choose the best method to solve by looking at the way the equations are set up for you:
graphing, elimination, substitution
2. Using the best method, how could you get the x variables to cancel out? Divide the bottom equation by 2.
Divide the top equation by 4, Multiply the top equation x -2 Multiply the bottom equation x -2.
3. After you complete step 2, what would your top equation be?
x+2y=46, -6x+4y=96, -6x-8y=-96, 3x+y=30
4. Line them up and add the equations together to get: -6=-36, 8y=96, 6y=-96, -8y=-96
5. Solve for y.
6. Solve for x.
Answers
GPT 3.5
To solve the system of equations, we will use the elimination method. We will start by multiplying the top equation by 2 and the bottom equation by 4 to cancel out the x variables.
2*(3x + 4y) = 2*48
6x + 8y = 96
4*(6x + 2y) = 4*60
24x + 8y = 240
Now, we can subtract the second equation from the first equation to eliminate the x variable:
(6x + 8y) - (24x + 8y) = 96 - 240
-18x = -144
x = (-144) / (-18)
x = 8
Next, we substitute the value of x into one of the original equations to solve for y. We will use the first equation:
3x + 4y = 48
3*8 + 4y = 48
24 + 4y = 48
4y = 48 - 24
4y = 24
y = 24 / 4
y = 6
Therefore, the solution to the system of equations is x = 8 and y = 6.
2*(3x + 4y) = 2*48
6x + 8y = 96
4*(6x + 2y) = 4*60
24x + 8y = 240
Now, we can subtract the second equation from the first equation to eliminate the x variable:
(6x + 8y) - (24x + 8y) = 96 - 240
-18x = -144
x = (-144) / (-18)
x = 8
Next, we substitute the value of x into one of the original equations to solve for y. We will use the first equation:
3x + 4y = 48
3*8 + 4y = 48
24 + 4y = 48
4y = 48 - 24
4y = 24
y = 24 / 4
y = 6
Therefore, the solution to the system of equations is x = 8 and y = 6.