$B$ is between $A$ and $C$. If $A B=x+2, B C=2 x-3$, and $A C=5 x-7$, what is $A B$?

The two operations being represented are subtraction and division. ( subtract 7 from 22, then you have 5x=15, and then divide by 5 to get x=3) to "undo" it you would just use the opposite if each operation (so use addition to add 7 back to 15, and then multiply 5 times 3 to get the original equation on 5x+7=22. I assume you would undo it in the reverse order that you did it the first time. Hope that helped!

Answered by njaquette7 | 2024-06-10

You should subtract 7 from both sides and then divide by 4 on both sides and that will be you answer for x and then plug in x to make sure you have the correct answer

Answered by justdance1313 | 2024-06-10

In the equation 5 x + 7 = 22 , the operations are addition and multiplication. To solve, you first subtract 7 and then divide by 5 , following the order of operations. This results in the solution x = 3 .
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Answered by njaquette7 | 2024-12-16