Answer:i dont know to do this stuff but i think you have to divide i think ???
Step-by-step explanation:
Answer:
the answer is: q = -2.5
Step-by-step explanation:
70 - q - q - 2q = 80
70 - 4q = 80
-4q = 10
q = -2.5
Y= f(x) = a+bx
example: f(x) = 3x+2
Answer:
(x) = 
Step-by-step explanation:
let y = f(x) and rearrange making x the subject, that is
y = 5x + 4 ( subtract 4 from both sides )
y - 4 = 5x ( divide both sides by 5 )
= x
change x to
(x) and y back to x, thus
(x) = 