Question

How do you solve `15x - ( 8x + 14) = 21`?

Answer 1

`x=5`

Explanation:

`"distribute and simplify left side"`

`15x-8x-14=21`

`7x-14=21`

`"add 14 to both sides"`

`7x=21+14=35`

`"divide both sides by 7"`

`x=35/7=5`

`color(blue)"As a check"`

Substitute this value into the left side of the equation and if equal to the right side then it is the solution.

`(15xx5)-(40+14)=75-54=21`

`x=5" is the solution"`