To solve this we need to solve for y (try to leave y by itself)
-25+4y=35 to do this first you need to add (the opposite of subtraction) 25 on both sides (remember that the equation has to always be balanced) leaving you with 4y=60
after this the only function that attaches the 4 to the y is multiplication, so we do the opposite (division)
4y/4=60/4
y=15
now y is all by itself, meaning that we solved for y
-25+4y=35 *Subtract 35* -25+4y-35=0 *add 25 (to cancel out)* 4y-35=25 *add 35 (to cancel out)* 4y=60 *Divide by 4 to get y on its own* y=15 Hope this helps :)