Answer:
x = 7
Step-by-step explanation:
Given s(x) = - 3(x - [tex]\frac{2}{3}[/tex]) + 19 and s(x) = 0, then equate the right sides, that is
- 3(x - [tex]\frac{2}{3}[/tex] ) + 19 = 0 ( add 19 to both sides )
- 3(x - [tex]\frac{2}{3}[/tex] ) = - 19 ← distribute the parenthesis
- 3x + 2 = - 19 ( subtract 2 from both sides )
- 3x = - 21 ( divide both sides by - 3 )
x = 7
