Question

What is 0.5-0.2x=0.3(x+3) ?

Answer 1

0.3(x + 3 ) = 0.3x + 0.9 ;
We solve the equation 0.5 - 0.2x = 0.3x + 0.9   /  - 0.3x;
0.5 -0.2x = 0.9   / -0.5;
-0.2x = 0.4        / × 10 ;
-2x = 4             / ÷ ( - 2 );
x = -2 ;
The solution of the equation is -2 .