Question

Resolva as equações:
a) 6x=2x+16
b)4x-10=2x+2
c)2x+1=4x-7
d)3x-2=4x+9

Answer 1

a)
6x-2x=16
4x=16
x=16/4
x=4

b)
4x-2x=2+10
2x=12
x=12/2
x=6

c)
2x-4x=-7-1
-2x=-8 .(-1)
2x=8
x=8/2
x=4

d)
3x-4x=9+2
-x=11 .(-1)
x=-11