Question

1. 5x + 3 = 7x – 1. Find x

a. 1/3
b. ½
c. 1
d. 2

Answer 1

Explanation:

`5x + 3 = 7x - 1`

First, let's move everything with an
`x` to the left-hand side of the equation, and everything else to the right-hand side:

`5x - 7x = -1 - 3`

`-2x = -4`

Now, let's divide both sides by
`-2` to isolate the
`x` on the left-hand side of the equation:

`(-2x)/(-2) = (-4)/(-2)`

`x = 2`

Answer 2

d) 2

Explanation:

5x + 3 = 7x – 1

now collect like terms

3 + 1 = 7x – 5x

every time you move something it changes signs

4 = 2x anything multiplied is divided on the other side and vice versa

4/2 = x

2 = x