Question

3×-8=12-×
7×+10=4×+31
15-3×=39-7×
6×-14=42-×

ayuda es para hoy ​

Answer 1

3x - 8 = 12 - x

3x + x = 12 + 8

4x = 20

x = 20/4

x = 5

7x + 10 = 4x + 31

7x - 4x = 31 - 10

3x = 21

x = 21/3

x = 7

15 - 3x = 39 - 7x

7x - 3x = 39 - 15

4x = 24

x = 24/6

x = 4

6x - 14 = 42 - x

6x + x = 42 + 14

7x = 56

x = 56/7

x = 8

Eternamente axllxa