Question

Tente resolver as equações a seguir
a) x + 5 = 8
b) x + 9 = −1
c) 2x – 10 + 7x + 10 = 180
d) 2(2x + 7) + 3(3x – 5) = 3(4x – 5) – 1
e) 33 + x = 5 − 3x
f) 5x - 46= 6
g) 4x + 811= 4
h) x2 + x3 = 5
i) x2+x3+x4 = 13

Answer 1

Resposta:

a) x = 8-5 -> x = 3

b) x = -1 - 9 -> x= -10

c) 9x = 180 -> x = 20

d) 4x + 14 + 9x - 15 = 12x - 15 - 1

  13x - 12x = -16 + 15 - 14

  x = -15

e) 4x = - 28

    x = -7

f) 5x = 52

 x = 52/5 = 10,4

g) 4x = -807

   x = -807/4 = - 201, 7

h) 5x = 5

  x=1

i) 9x = 13

x= 13/9 = 1.4