Answer:
y = -3
Step-by-step explanation:
Given the expression 7-(3.1-0.1у)=3-0.2у
We are to find the value of y as shown
7-(3.1-0.1у)=3-0.2у
Open the parenthesis
7-3.1+0.1y= 3-0.2y
3.9+0.1y = 3-0.2y
Collect like terms
0.1y+0.2y= 3-3.9
0.3y = -0.9
y = -0.9/0.3
y = -3
Hence the value of y is -3
