Do You Remember How to Completely Simplify an Expression? (1) Simplify completely. 7 − 6𝑥 − 9 (2) Simplify completely. 3𝑛 − 4𝑚 + 3𝑚 − 2 (3) Simplify completely. 3𝑥 + 4𝑏 − 6𝑐 Simplify completely. − 3 − 𝑥 + 2𝑥 − 7 Simplify completely. −
(4) Simplify completely. −2 3𝑎 + 5𝑏 + 2 3𝑎 + 5𝑏 Simplify completely. − 2𝑥 − 4𝑦 + 𝑦 − 7 − 4𝑥 (5) ! !
! 𝑥+2 −
!
! 𝑥 + ! (6) (7) (8) (9) (10) Simplify completely. Simplify completely. Simplify completely. !
! !
𝑥 − 4 − ! 2𝑥 − 1 𝑎 − 3𝑏 − 6𝑐 − 3𝑎 − 7𝑏 + 2𝑐 3 4𝑎 − 2𝑏 − 2 𝑎 − 6𝑏 + (−12𝑎 − 𝑏) Answers:
(1) −6𝑥 + 16 (2) −𝑚 + 3𝑛 − 2 (4) 3𝑥 − 10 (5) −𝑥 −
(7) −6𝑥 + 5𝑦 − 7 (10) −2𝑎 + 5𝑏 (8) −
! !
!" !
! (3) 3𝑥 + 4𝑏 − 6𝑐 (6) 0 − ! (9) −2𝑎 + 4𝑏 − 8𝑐