Question

Resolva as equações a seguir: min ajuda pfv
a) 2x - 5 =9
b) 3x - 6 = 18
d)2x - 4 = 16
e)8x - 6 = 18
f )7x + 1 = -13
g)2x - 8 = 10
h)2x - 6 = 12
i)2x + 1 = - 11
j)3x - 5 = 103
k)2x - 14 = 2
l)11x = -121 ​

Answer 1

Explicação passo-a-passo:

a) 2x -5=9

2x= 9+5

2x = 14

x = 14/2

x = 7

b) 3x-6=18

3x = 18+6

3x = 24

x = 24/3

x= 8

d) 2x -4 = 16

2x = 16 +4

2x = 20

x= 20/2

x =10

e) 8x-6= 18

8x= 24

x = 24/8

x= 3

f) 7x + 1 = -13

7x = -13 -1

7x = -14

x = -14/7

x = -2

g) 2x -8 = 10

2x = 10 +8

2x = 18

x= 18/2

x = 9

h) 2x -6 = 12

2x = 12 + 6

2x = 18

x = 18/2

x = 9

i) 2x + 1= -11

2x = -11 - 1

2x = -12

x = -12/2

x = -6

j) 3x -5 =103

3x = 108

x = 108/3

x = 36

k)2x -14 = 2

2x = 14 + 2

2x = 16

x = 16/2

x = 8

l) 11x = -121

x= -121/ 11

x = -11