Question

Determina el valor de la incógnita en las siguientes ecuaciones.

1. 8a – 3a = –25

2. 10x – 3x = –20 –8

3. 3x + 2 = –10

4. 7x = –49

5. 3x – 2 + 5x = 14

6. 9x – 2 = 4x + 18

Answer 1

1. 8a – 3a = –25

5a = -25

a = -25/5

a = -5

2. 10x – 3x = –20 –8

7x = -28

x = -28/7

x = -4

3. 3x + 2 = –10

3x = -10 - 2

3x = -12

x = -12/3

x = -4

4. 7x = –49

x = -49/7

x = -7

5. 3x – 2 + 5x = 14

3x + 5x = 14 + 2

8x = 16

x = 16/8

x = 2

6. 9x – 2 = 4x + 18

9x - 4x = 18 + 2

5x = 20

x = 20/5

x = 4

Espero haberte ayudado. Suerte en los estudios ≧◠◡◠≦.