Question

resolva as equações seguintes sendo U = Q
A)2x = -4
B) - 4x = 2
C) 7x = -7
D) 2x =
$\frac{1}{2}$
E) 3x = 9
F) 7x = 0

Answer 1

Olá...

a)

2x = - 4

x = - 4/2

x = - 2

b)

-4x = 2→(× por -1)

4x = - 2

x = - 2/4

x = - 1/2

c)

7x = - 7

x = - 7/7

x = - 1

d)

2x = 1 / 2

x = 1/2 / 2

x = 1/2 × 1/2

x = 1/4

e)

3x = 9

x = 9/3

x = 3

f)

7x = 0

x = 0/7

x = 0

Espero ter ajudado

Bons estudos.

Answer 2

Oie, Td Bom?!

>>> Resolvendo as equações.

a)

2x = - 4

x = - 4/2

x = - 2

b)

- 4x = 2

x = 2/-4

x = - 2/4

x = - 2÷2/4÷2

x = - 1/2

c)

7x = - 7

x = - 7/7

x = - 1

d)

2x = 1/2

x = 1/2 ÷ 2

x = 1/2 • 1/2

x = 1•1/2•2

x = 1/4

e)

3x = 9

x = 9/3

x = 3

f)

7x = 0

x = 0/7

x = 0

Att. Makaveli1996