Question

resolva as equações:
a) x-5=8

b) 3x+6=12



c) 2=7y-5


d) 5c+2=3-9

Answer 1

A)x-5=8
x=8+5
x=13

B) 3x+6=12
3x=12-6
3x=6
x= 6/3
x=2

C)2=7y-5
-7y=-5-2
-7y=-7
y=-7/-7
y=1

D) 5c+2=3-9
5c=3-9-2
5c=-8
c=-8/5
c= -1,6