Answer: -0.15
Explanation:
0.15=x0.3
We move all terms to the left:
0.15-(x0.3)=0
We add all the numbers together, and all the variables
-(+x0.3)+0.15=0
We get rid of parentheses
-x0.3+0.15=0
We move all terms containing x to the left, all other terms to the right
-x0.3=-0.15
x=-0.15/1
x=-0.15
