0.3(3x-1)+0.2=5(0.1-0.2x)-0.1

Question

0.3(3x-1)+0.2=5(0.1-0.2x)-0.1

Answer 1

0.3(3x-1)+0.2=5(0.1-0.2x)-0.1

(0.3*3x)-(0.3*1)+0.2=(5*0.1)-(5*0.2x)-0.1

0.9x-0.3+0.2=0.5-x-0.1

0.9x+x=0.5-0.1+0.3-0.2

1.9x=0.5

x=0.5:1.9=5:19

x=5/19

 

Answer 2

0.3(3x-1)+0.2=5(0.1-0.2x)-0.1

0,9х-0,3+0,2 = 0,5 - х - 0,1

0,9х + х = 0,5-0,1-0,2+0,3

1,9х=0,5

х= 0,5 / 1,9= 5/10 : 19/10 = 5/10 * 10/19 = 5/19