Question

1)Resolva as equações.
a) –2x = 18
b) 3x = 9
c) 3a = 12
d) 2x = –14
e) 6y = 24
f) x + 9 = 18
g) x – 1 = – 8

Answer 1

a) –2x = 18

x=18/2

x=-9

b) 3x = 9

x=9/3

x=3

c) 3a = 12

a=12/3

a=4

d) 2x = –14

x=-14/2

x=-7

e) 6y = 24

y=24/6

x=4

f) x + 9 = 18

x=18-9

x=9

g) x – 1 = – 8

x=-8+1

x=-7