Question

7 resuelve las siguientes ecuaciones​

Answer 1

Respuesta:

1) x=4

2) x= 15

3) x= -1

4) x= 7

5) x= -19

Answer 2

Respuesta:

5 + x = 17-2x

x+2x = 17-5

3x = 12

3x/3 = 12/3

x = 4

21-2x = x+6

21-6 = x+2x

15 = 3x

15/3 = 3x/3

5 = x

x = 5

5x-3 = -x-9

-3+9 = -x-5x.

6 = -6x

6/-1 = -6x/-1

-6 = 6x

-6/6 = 6x/6

-1 = x

x = -1

-x+3 = 2x-18

3+18 = 2x+x

21 = 3x

3x = 21

3x/3 = 21/3

x = 7

8+2x-5 = 3x+22

(8-5)+2x = 3x+22

3 + 2x = 3x+22

3-22 = 3x-2x

-19 = x

x = -19

Explicación paso a paso: