Question

ayuda por favor lo necesito y no le entiendo​

Answer 1

Explicación paso a paso:

2x -34 = - 20

2x = - 20 + 34

2x = 14

x = 14/2

x = 7

9x + 8 = 7x + 6

9x - 7x = 6 - 8

2x = -2

x = -2/2

x = -1

7x + 9 = 3 + 9x

7x - 9x = 3 - 9

-2x = -6

x = -6/-2

x = 3

x - 8 = 2x - 11

x -2x = -11 + 8

- x = -3

x - 3/- 1

x = 3