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Big Ideas Math: Modeling Real Life, Grade 6

BI

Big Ideas Math: Modeling Real Life, Grade 6 View details

2. Solving Equations Using Addition or Subtraction

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Exercise 14 Page 254

Use the Subtraction Property of Equality to eliminate the addition.

b=19

Practice makes perfect

To solve the equation, we have to isolate b on one side. Using the Subtraction Property of Equality, we will subtract 14 from both sides of the equation. This will eliminate the addition and isolate b.

b+14=33

LHS-14=RHS-14

b+14-14=33-14

Subtract term

b=19

To check that this solution is correct, let's substitute b=19 into the original equation and simplify.

b+14 = 33

b= 19

19 + 14 ? =33

Calculate quotient

33= 33 ✓

Since the left-hand side and right-hand side are equal, b=19 is the correct solution.

Subchapter links

Try It p.252-254

Self-Assessment for Concepts & Skills p.254

Self-Assessment for Problem Solving p.255

Review & Refresh p.256

Concepts, Skills, & Problem Solving p.256-258