What you want to do is find the comon demominator and than go from rhere pluse you should be able to go and look back at the lesson if you dont get ut well its like that for me
3(10) + 5y = 20
5y = 20 - 30
5y = - 10
y = - 2
6(x-3y)+4x+y
6x-18y+4x+y
10x-19y
We plug the value of x into the equation:
2x+1
2(5)+1
10+1
11