Question

a.5×-1=7×+12
b.2 (×-3)=5×-7
c.3 (2-×)+5=2 (×+8)
resolva as equações
Urgente .

Answer 1

a) 5x-7x-12-1=0
-2x-13=0
-2x=13
x=-13/2 ou 6,5
b) 2x-6=5x-7
3x-1=0
3x=1
x=1/3
c)6-3x+5=2x+16
11-3x=2x+16
5x=-5
x=-5/5= -1