$5y-7=6y-3$
Move the variable to the left-hand side and change its sign$5y-7-6y=-3$
Move the constant to the right-hand side and change its sign$5y-6y=-3+7$
Collect like terms$-y=-3+7$
Calculate the sum$-y=4$
Change the signs on both sides of the equation$y=-4$