y=2x+37
y=6x+21
How do I solve this? I know x is 8 but I plugged in y twice and got two different answers.
use substitution
6x+21 = 2x+37
4x = 16
x = 4
go back to either equation
y = 2(4) + 37
y = 45
how did you get x = 8 ?
nvm i got it
x= 4 and y=45
oh, I tried to use elimination, I subtracted the 2nd equation form the 1st
Note: Enter your answer and show all the steps that you use to solve this problem in the space provided.
In 2000, the circulation of a local newspaper was 3,250. In 2001, its circulation was 3,640. In 2002, the circulation was 4,100.
Find the percent of increase in the newspaper’s circulation from 2000 to 2001 and from 2001 to 2002.
Which period had a higher percent of increase, 2000 to 2001, or 2001 to 2002?
Anyone know??
To solve this system of equations, you need to find the values of both x and y that satisfy both equations simultaneously. Let's go step by step:
Step 1: Set the two equations equal to each other:
2x + 37 = 6x + 21
Step 2: Simplify the equation by combining like terms:
Subtract 2x from both sides:
37 = 4x + 21
Step 3: Isolate the variable term on one side of the equation:
Subtract 21 from both sides:
16 = 4x
Step 4: Solve for x by dividing both sides by 4:
x = 16/4
x = 4
Step 5: Substitute the value of x back into either equation to find the value of y:
Let's use the first equation, y = 2x + 37:
y = 2 * 4 + 37
y = 8 + 37
y = 45
Therefore, the solution to the system of equations is x = 4 and y = 45.
If you obtained different answers for y when you plugged in x, it might indicate an error in your calculations. Double-check your work to ensure accurate arithmetic and follow the steps provided above to solve the system correctly.