Big Ideas Math: Modeling Real Life, Grade 7
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Big Ideas Math: Modeling Real Life, Grade 7 View details
1. Solving Equations Using Addition or Subtraction
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Exercise 2 Page 131

Write - 18 as the product of - 6 and 3.

- 6(y + 3)

Practice makes perfect
We want to factor out the coefficient of the variable term in the given expression. - 6y - 18The coefficient is equal to - 6. Let's split into factors - 6y and - 18. One of the factors should be equal to - 6. - 6y&= - 6* y - 18&= - 6* 3 - 18 is divisible by - 6, so we can factor out - 6.
- 6y - 18
- 6* y + ( - 6)* 3
- 6(y + 3)