The value of x for which the expressions 3x – 4 and 2x + 1 become equal is
-3
0
5
1

Step-by-step explanation:

To determine for which value of x a pair of expressions will be equal, we will need to set them equal to each other and then solve for x.

First, we can add 4 to each side

Now we can subtract 2x from each side

Now, just to check our answer, we can plug in our answer back into the original equation to see whether we get the same result for each side

Step-by-step explanation:

You can use a ratio and cross multiply to get your answer.

20 pounds       1 pound

 =

      $11                 $ X

Forget about the units of measurement for now and just do the cross multiplying with the numbers  to solve for X.

(20) x (X) = (1) x 11   then divide both sides of the equal sign by 20

20X         11

=    the 20 on top and bottom on the left side cancel out.

20            20

So you are left with X = 11/20  which is  $ 0.55