5/7(0,21-1,4х)-4/9(0,36-4,5х)=1

Question

5/7(0,21-1,4х)-4/9(0,36-4,5х)=1

Answer 1

(5/7*21/100-14/10x*5/7)-4/9(0.36-4.5x)=1

(0.15-x)-(-4/9*36/100-45/10x*-4/9)=1

(0.15-x)-(-0.16+2x)=1

0.15-x+0.16-2x=1

-3x=1-0.31

-3x=0.69

x=-0.23