33•3 is 99, so the answer is 3
Answer:
Step-by-step explanation:
y-x=5
<=> 3x+13-x=15
<=> 2x=2
<=>x=1
=> y=3×1+13=16
Vậy x=1
y=16
Greetings!
"
Solve for f:

".
Multiply both sides by
f.

Simplify.

Multiply both sides by
xy.

Simplify.

Factor out
f.

Divide both sides by
x+y.

Simplify.


Had to change the variable as Brainly thought it was a swearword. Sorry.
Hope this helps.
-Benjamin
I think the answer might be A or D but most likely it's D
2a + c = 1850
2a + c (-c) = 1850 (-c)
2a = 1850 - c
2a/2 = (1850 - c)/2
a = 925 - (c/2)
hope this helps