Question 515080
2(5+4y)/5 +10y=2
Multiply by LCM (which is 5) both sides
5*(2(5+4y)/5 +10y)=2*5
2(5+4y)+50y=10
10+8y+50y=10
58y=10-10
58y=0
58y/58=0/58
y=0

Check
2(5+4y)/5 +10y=2
2(5+4(0))/5 +10(0)=2
2(5)/5=2
2=2