Question

A) X+6=‐5, b)x‐8=‐10 c)6x=42 d)‐3x=24 e)2x‐4+6=20 f)‐15+5×=25 g)x+1=5-x h)4x+6=6x+10



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Answer 1

Resposta e o calculo:

a) x + 6 = ‐ 5

x = -5 -6

x = -11

b) x ‐ 8 = ‐10

x = -10 + 8

x = -2

c) 6x = 42

x = 42/6

x = 7

d) ‐3x = 24 .(-1)

3x = -24

x = -24/3

x = 8

e) 2x ‐ 4 + 6 = 20

2x = 20 + 4 - 6

x = 18/2

x = 9

f) ‐15 + 5x = 25

5x = 25 + 15

x = 40/5

x = 8

g) x + 1 = 5 - x

x + x = 5 - 1

2x = 4

x = 4/2

x = 2

h) 4x + 6 = 6x + 10

4x - 6x = 10 - 6

-2x = 4 .(-1)

2x = -4

x = -4/2

x = -2