Exercise 3 Page 85

To solve the equation, we have to isolate y on one side. By dividing both sides of the equation by 5, we are using the Division Property of Equality to isolate y. Therefore, y= 245 is the solution to the equation. To check that we have the correct solution, we can substitute y= 245 into the original equation and simplify.

5y=24

Substitute

y= 24/5

5* 24/5? =24

DenomMultFracToNumber

5 * a/5= a

24=24 ✓

Since the left-hand side and right-hand side are equal, y= 245 is the correct solution. We can also write our solution as a mixed number.

y=24/5

▼

Write as a mixed number

Rewrite

Rewrite 24 as 20+4

y=20+4/5

WriteSumFrac

Write as a sum of fractions

y=20/5+4/5

CalcQuot

Calculate quotient

y=4+4/5

Finally, the numeric expression 4+ 45 can be read as 4 and 45. Therefore, it can be written as 4 45. y=4+4/5 ⇔ y=4 45