Question

The value of x for which the expressions 3x – 4 and 2x + 1 become

Answer 1

Answer:

5

Step-by-step explanation:

1) make them equal to each other

2) put all the constants on one side and all the ones with x on the other

3) solve

Answer 2

Answer:

$x=5$

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.

$3x-4=2x+1$

First, we can add 4 to each side

$3x=2x+5$

Now we can subtract 2x from each side

$x=5$

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

$3(5)-4=2(5)+1\\\\15-4=10+1\\\\11=11$