Question

Answer 1

`a, -4x - 3 + 5x + 2 = 0`

`<=> x - 1 = 0`

`<=> x = 1`

Vậy `x = 1`

`b, x/2 - 1/4- 3x + 1 = 0`

`<=> (-5x)/2 + 3/4 = 0`

`<=> -10x + 3 = 0`

`<=> x = 3/10`.

Vậy `x = 3/10`

Answer 2

a: =>-4x-3+5x+2=0

=>x-1=0

=>x=1

b: =>1/2x-1/4-3x+1=0

=>-5/2x+3/4=0

=>-5/2x=-3/4

=>x=3/4:5/2=3/4*2/5=6/20=3/10