Question

me ajudem nesta lição
a)-x=9 b)-x=-2
c)-7x=14
d)-3x=10
e)-5x=-12
f)-4x=8

Answer 1

a)-x=9    (-1)
x = -9

b)-x=-2   (-1)
x = 2

c)-7x=14 
x = - 14/7
x = -2

d)-3x=10
x =  -  10/3

e)-5x=-12
x = -12 / -5
x = 12/5

f)-4x=8
x =  -  8/4
x = -2