Bài tập toán cơ bản số 23

Madas Question 5 Simplify fully the following expressions... Madas Question 6 Simplify fully the following expressions.

Created by T Madas

Created by T Madas

Question 5

Simplify fully the following expressions

a) 4 2( x−3)−2 3( x−8)=2x+4

b) 5 3( x−3)−3 5( x−7)=6

c) 9x−2 3( x−4) (− 7−x)=4x+1

d) 8 2 7− ( x+1) (− 3 5− x)= −3 9x

e) 7 2( x−5)−5 5 2( − x)=24x−60

Created by T Madas

Created by T Madas

Question 6

Simplify fully the following expressions

4x x−2 −2 x +3x−1 =2x −14x+2

4x 3−x −2x x−2 = −6x +16x

2x 3x−7 −4x−x 2 5− x =11x −20x

4x 3x−2 − 10 4− x−5x =17x −4x−10

4 2x −3 −x 3−x =9x −3x−12