Question

RESOLVER LAS SIGUENTES ECUACIONES.

a) 2x +3=9

b) 3x - 5=10

c) x + 4x=7+13

d) 2+7x -3x=18

e) 9+5x - 4+ x=23

f) 10x - 5 - 2x=9+5x + 7​

Answer 1

Explicación paso a paso:

a) 2x + 3 = 9

2x = 9 – 3

2x = 6

x = 6/2

x = 3

b) 3x – 5 = 10

3x = 10 + 5

3x = 15

x = 15/3

x = 5

c) x + 4x = 7 + 13

5x = 20

x = 20/5

x = 4

d) 2 + 7x – 3x = 18

4x = 18 – 2

4x = 16

x = 16/4

x = 4

e) 9 + 5x – 4 + x = 23

5 + 6x = 23

6x = 23 – 5

6x = 18

x = 18/6

x = 3

f) 10x – 5 – 2x = 9 + 5x + 7

10x – 2x – 5x = 9 + 7 + 5

3x = 21

x = 21/3

x = 7