ah another linear equation, fortunatly I am quite good at these
again I will go through as best as I can.
5(2y5)=3(y1)
so now we have to use a technique where we multiply everything inside the brackets by the outside number so this is what happens.
10y25=3y3
now what I did is I went 5x2y=10y, 5x5=25, 3xy=3y, 3x1=3
so now
10y=3y3+25
remember the 25 changes signs.
10y3y=3+25
then
7y=22
now we lastly divide so
y= 22/7 y=22

7
or y= 3.14286
hope that helps