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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 26 Page 256

Use the Subtraction Property of Equality to eliminate the addition.

p=3

Practice makes perfect
To solve the equation, we have to isolate p on one side. Using the Subtraction Property of Equality, we will subtract 5 from both sides of the equation. This will eliminate the addition and isolate p.
p+5=8
SubEqn

LHS-5=RHS-5

p+5-5=8-5
SubTerm

Subtract term

p=3
To check that this solution is correct, let's substitute p=3 into the original equation and simplify.
p+5=8
Substitute

p= 3

3 + 5 ? = 8
AddTerms

Add terms

8=8 âś“
Since the left-hand side and right-hand side are equal, p=3 is the correct solution.
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