3(4y-7)=6 3(4y) is 12y and 3(-7) is -21 = 6 solve each of the parts in then parentesis by multiplying by 3 12y-21=6 rewrite the problem with new digits 12y = 21 + 6 12y = 27 12y/12 = 27/12 divide both sides by 12 y= 27/12 then you simplify y= 9/4 y = 2 1/4