Question

RESOLVER LAS SIGUIENTES ECUACIONES DE PRIMER GRADO 2х + 5 = 9 3х + 7 + 7 = 2x - 4 5х – 9 = 3 + 6 2x – 5 = 3х + 4 5х – 1 = 7x — 4 ​

Answer 1

Explicación paso a paso:

2х + 5 = 9

2x = 9 - 5

2x = 4

x = 4 / 2

x = 2

3х + 7 + 7 = 2x - 4

3x + 14 = 2x - 4

3x - 2x = -4 - 14

x = -18

5х - 9 = 3 + 6

5x - 9 = 9

5x = 9 + 9

5x = 18

x = 18

5

2x - 5 = 3х + 4

2x - 3x = 4 + 5

- x = 9 /• -1

x = -9

5х - 1 = 7x - 4

5x - 7x = 1 - 4

- 2x = -3

-2x = -3 /• -1

2x = 3

x = 3

2