Question

Which expression is equivalent to this expression?

4a + (–6b) – 3a + 2b
A. a + 4b
B. a – 4b
C. 7a – 8b
D. 7a – 4b

Answer 1

Simplify brackets

4a - 6b - 3a + 2b

Collect like terms

(4a - 3a) + (-6b + 2b)

Simplify

Answer 2

Simplify brackets

4a - 6b - 3a + 2b

Collect like terms

(4a - 3a) + (-6b + 2b)

Simplify

Answer: B. a - 4b