2x + 9 = 43 This is the equation.
2x = 34 Subtract 9 from both sides.
x = 17 Divide both sides by 2.
19 is a prime number so 1, 19
hope this helps!
Answer:
B) $822
Step-by-step explanation:
The total amount of money she spent can be found by adding her expenses:
312 + 287 + 112 + 111
Once added you get the total amount of:
$822
569/x=100/18
multiply both sides of the equation
569=5.55556
now we divide
569/5.55556
102.42=x
18% of 569=102.42
