Question

qual é o valor de X nas equações a) 2x + 8 = - 2 B) 16 x - 2x = 14 c)20 x - 13 = 20 + 9x d) 4 x - 3x + 1 = 3​

Answer 1

a) 2x + 8 = - 2

2x = - 2 - 8

2x = - 10

x= - 10/2

x= - 5

B) 16x - 2x = 14

14x = 14

x= 14/14

x= 1

c)20x - 13 = 20 + 9x

20x - 9x = 20 + 13

11x = 33

x= 33/11

x= 3

d) 4x - 3x + 1 = 3

x = 3 - 1

x= 2

Answer 2

A) 2x+8=-2
2x = -2 -8
2x = -10
X = -10/2 = -5

B) 16x -2x= 14
14x = 14
X = 14/14 = 1

C) 20x-13=20+9x
20x-9x = 20+13
11x=33
X = 33/11 = 3

D) 4x-3x+1=3
X=3-1
X = 2