Question

Please help me!

(But give in detail of how you got the answer)
Solve for s. 2/3s + 5/6s = 21
Enter the answer, as a whole number or as a fraction in simplest form, in the box.

s =

Answer 1

s = 14

Explanation:

Step 1: Combine like terms.

• 
  `((2)/(3)s + (5)/(6)s) = 21`
• 
  `((4)/(6)s + (5)/(6)s) = 21`
• 
  `(9)/(6)s = 21`
• 
  `(3)/(2)s=21`

Step 2: Multiply both sides by 2/3.

• 
  `(3)/(2)s * (2)/(3) = 21 * (2)/(3)`
• 
  `s = (42)/(3)`
• 
  `s = 14`