Answer:
Answer is y=6 (option C).
Step-by-step explanation:
|10 - 5y| = 20
First equation is just as written for first solution:
10 - 5y = 20
Subtract 10 from both sides to eliminate the 10.
-5y = 10
divide both sides by -5 to eliminate the -5 and isolate the y.
y = -2
Distribute negative sign through equation for a second solution.
|10 - 5y| = 20
-(10 - 5y) = 20
-10 + 5y = 20
Add 10 to both sides to eliminate the 10.
5y = 30
divide both sides by 5 to eliminate the 5 and isolate the y.
y = 6
y = 6 is the only answer listed in the 4 options.
