Question

Simplifique e resolva as equações, considere U=Q:

a)4 x = 24

b) x – 15 = 69

c) 2 x + 4 = - 64

d)2x – 5 = 15

e)- 4x = - 164

f)x + 5 = 12

2
ME AJUDEM PFVRRRR

Answer 1

Resposta:

a)

$4x = 24\\x = \frac{24}{4} = 6$

b)

$x - 15 = 69\\x = 69 + 15 = 84$

c)

$2x + 4 = -64\\2x = -64 + 4\\2x = -60\\x = \frac{-60}{2} = -30$

d)

$2x - 5 = 15\\2x = 15 + 5\\2x = 20\\x = \frac{20}{2} = 10$

e)

$-4x = -164\\4x = 164\\x = \frac{164}{4} = 41$

f)

$x + 5 = 12\\x = 12 - 5 = 7$