Răspuns:
12x+35=7x
12x-7x+35=0
12x-7x=-35
5x=-35
x=(-7)
25x-64=9x
25x-9x-64=0
25x-9x=64
16x=64
x=64/16
x=4
La a 3 a nu este enuntul complet
95x+128=39x+16
95x-39x+128=16
95x-39x=16-128
79x=-112
x=-112/79
x=-1,41
