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Pearson Algebra 1 Common Core, 2011 View details

6. The Quadratic Formula and the Discriminant

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Exercise 52 Page 588

Apply inverse operations to isolate b.

B

Practice makes perfect

To solve the given literal equation for b, we will use the Properties of Equality to apply inverse operations on the equation. Remember, only like terms can be combined.

3a-b=2c

SubEqn

LHS-3a=RHS-3a

- b=2c-3a

MultEqn

LHS * (-1)=RHS* (-1)

b=- 2c+3a

CommutativePropAdd

Commutative Property of Addition

b=3a-2c

Therefore, the correct option is B.