Answer:
10y + 20 -11 =139
10y = 130
y = 130 / 10
y = 13
Step-by-step explanation:
5(2y + 4) - 11 = 139
5*2y + 5*4 -11 = 139
10y + 20 -11 = 139
10y + 9 = 139 {subtract 9 form both sides}
10y + 9- 9 = 139 -9
10y = 130 {Divide both sides by 10}
10y/10 = 130/10
