Answer:
x = -1
Step-by-step explanation:
Given: [tex]f(x) = - 3x + 3[/tex]
Solve for x, When: [tex]f(x) = 6[/tex]
Step by step:
[tex] - 3x + 3 = 6[/tex]
[tex] - 3x = 6 - 3[/tex]
[tex] - 3x = 3[/tex]
[tex]x = 3 \div - 3[/tex]
[tex]\boxed{\green{x = - 1}}[/tex]
