Question

AYUDAAAAAAAAA NO ENTIENDOOO
a) x+11 =21
b) x:4 = 8
c) x:5 = 10
d) 2.x +1 = 5
e) 3.x -2 = 13
f) + 2 x = x + 5
g) 4x + - 2 = 2x + 3. 5
h) - (2+3) + 11x = + 3. 8

Answer 1

Respuesta:

a) x + 11 = 21

x = 21 - 11

x = 10

b) x : 4 = 8

x = 8 x 4

x = 32

c) x : 5 = 10

x = 10 x 5

x = 50

d) 2 . x + 1 = 5

2x = 5 - 1

2x = 4

x = 4 / 2

x = 2

e) 3x - 2 = 13

3x = 13 + 2

3x = 15

x = 15 / 3

x = 5

f) 2x = x + 5

2x - x = 5

x = 5

g) 4x + (-2) = 2x + 3 x 5

4x - 2 = 2x + 15

4x - 2x = 15 + 2

2x = 17

x = 17 / 2