Exercise 25 Page 131

q = 5/18

Practice makes perfect

To solve the equation, we have to isolate q on one side. Using the Subtraction Property of Equality, we will subtract 59 from both sides of the equation. This will eliminate the addition and isolate q.

q + 5/9 = 5/6

LHS-5/9=RHS-5/9

q + 5/9 - 5/9 = 5/6 - 5/9

Subtract term

q = 5/6 - 5/9

a/b=a * 3/b * 3

q = 15/18 - 5/9

a/b=a * 2/b * 2

q = 15/18 - 10/18

Subtract terms

q = 5/18

To check that this solution is correct, let's substitute q = 518 into the original equation and simplify.

q + 5/9 = 5/6

q= 5/18

5/18 + 5/9 ? = 5/6

a/b=a * 2/b * 2

5/18 + 10/18 ? = 5/6

Add terms

15/18 ? = 5/6

a/b=.a /3./.b /3.

5/6 = 5/6 ✓

Since the left-hand side and right-hand side are equal, q = 518 is the correct solution.

Try It p.128-129

Self-Assessment for Concept & Skills p.129

Self-Assessment for Problem Solving p.130

Review & Refresh p.131

Concept, Skills, & Problem Solving p.131-132

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