Question

3x-3=15x и 2x- 6=20x

Answer 1

3х-3=15; 3х=15+3;  3х=18;   х=6

2х-6=20х;  2х-20х=6; -18х=6; -х=6/18;  х= - 1/3

 

 

Answer 2

$3x - 15x = 3$

$-12x = 3$

$x = -frac{1}{4}$

 

$2x - 6 = 20x$

$-6 = 18x$

$x = -frac{1}{3}$