Question

Solve: 3x + 7 > 28


Help me please

Answer 1

x > 7

Explanation:

3x + 7 > 28

First, move over the 7.

3x + 7-7 > 28-7

3x > 21

Then, divide by 3

3x/3 > 21/3

x > 7

Answer 2

`x>7`

Explanation:

We have the inequality
`3x+7>28` and we want to solve it for
`x`.

1) Subtract 7 from both sides:
`3x + 7 -7>28-7`

2) Simplify by collecting the terms together:
`3x > 21`

3) Divide both sides by 3 to get
`x` on it's own:
`(3x)/(3) >(21)/(3)`

4) Simplify:
`x > 7`

So
`x` must be greater than 7 for it to satisfy the inequality
`3x+7>28`.

If it is below or equal to 7, it does not work.