Question

Pleaseeee helpppppp!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!1

Answer 1

Explanation:

2)
`x - 7 > 10`

`= x - 7 + 7 > 10 + 7`

`= x > 10`

3)
`3x \leqslant 21`

`= (3x)/(3) = (21)/(3)`

`= x \leqslant 7`

4)
`5a - 2 < 18`

`= 5a - 2 + 2 < 18 + 2`

`= 5a < 20`

`= (5a)/(5) < (20)/(5)`

`= a < 4`

5)
`2t + 8 > - 4(t + 1)`

`= 2t + 8 > - 4t - 4`

`= 2t + 8 + 4 > - 4t - 4 + 4`

`= 2t + 12 > - 4t`

`= 2t + 4t + 12 > - 4t + 4t`

`= 6t + 12 > 0`

`= 6t + 12 - 12 > 0 - 12`

`= 6t > - 12`

`= (6t)/(6) = ( - 12)/(6)`

`= t > - 2`