77+2y
--------- =0.6y
8
八分之七十七加二y等於0.6y, 咁y等於甚麼?
_________________________________________________________________
8(w-2.1)=6(w+3)
八乘以開括號w減二點一關括號等於六開括號w加三關括號,咁w等於甚麼?
_________________________________________________________________
請列部驟,多謝合作!!!