Answer:
(x) = 
Step-by-step explanation:
let y = f(x) and rearrange making x the subject, that is
y = 2x + 1 ( subtract 1 from both sides )
y - 1 = 2x ( divide both sides by 2 )
= x
Change y back into terms of x with x = (x) , so
(x) =
Answer:
For the first expression-
terms- 4a^2, -5a
constants- -3
coefficients- 4, -5
For the second expression-
terms- 7(-3x+5), 11y
constants- 7, 5
coefficients- -3, 11
Answer:
lets start with the easy equation. X+Y=60. so we take 60 and subtract Y to get X by itself. meaning X = 60-Y. every time we see X replace with (60-Y).
X + 5Y = 100 change to
60-Y+5Y = 100
5Y - Y = 4y.
60+4Y = 100. 100 minus the 60 = 40. 4Y=40. divide by 4. Y = 10. ok so now we solve for X. X + Y (or 10) = 60. 60-10 = 50. X = 50.
Step-by-step explanation:
Answer:
$26 per person or $23.125 per person for the bigger group
Step-by-step explanation:
