Question

resolva as equaçoes

a)-9x+8=-43

b)o=11x-4

c)-4=2-3x

d)4=2x+4

Answer 1

a)
-9x+8= -43
-9x= -43-8
-9x= -51  (-1)
9x=51
x=51/9

b)
0=11x-4
-11x=-4    (-1)
11x=4
x=4/11

c)
-4=2-3x
3x=2+4
3x=6
x=6/3
x=2


d)
4=2x+4
-2x=4-4
-2x=0        (-1)
2x=0
x=0/2
x=0