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Big Ideas Math: Modeling Real Life, Grade 6
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Big Ideas Math: Modeling Real Life, Grade 6 View details
2. Solving Equations Using Addition or Subtraction
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Exercise 28 Page 256

Use the Subtraction Property of Equality to eliminate the addition.

h= 34

Practice makes perfect

To solve the equation, we have to isolate h on one side. Using the Subtraction Property of Equality, we will subtract 30 from both sides of the equation. This will eliminate the addition and isolate h.

64 = h +30
SubEqn

LHS-30=RHS-30

64-30=h+30-30
SubTerm

Subtract term

34 = h
RearrangeEqn

Rearrange equation

h= 34

To check that this solution is correct, let's substitute h= 34 into the original equation and simplify.

64 = h +30
Substitute

h= 34

64 ? = 34 + 30
AddTerms

Add terms

64 = 64 ✓

Since the left-hand side and right-hand side are equal, h= 34 is the correct solution.

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arrow_right Try It p.252-254
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Try It 2 (Page 252)
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arrow_right Self-Assessment for Problem Solving p.255
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arrow_right Review & Refresh p.256
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