Question

Ecuaciones lineales, 5to.

Answer 1

Explicación paso a paso:

ecuaciones :

a) 2x - 5 = - 3

2x = - 3 + 5

2x = 2

x = 1

b) 2x - 7 = 5x + 2

- 7 - 2 = 5x - 2x

- 9 = 3x

- 3 = x

c) 3 - 4x = 4x - 5

3 + 5 = 4x + 4x

8 = 8x

1 = x

d) -3x + 6 = x - 10

6 + 10 = x + 3x

16 = 4x

4 = x

e) 5x - 2x + 1 = x - 11

3x = x - 12

2x = - 12

x = - 6

f) x + 2x - 2 = 3x - 2

3x - 2 = 3x - 2

0 = 0

g) x + 8 = 2x - 8 + 3x

x + 8 = 5x - 8

16 = 4x

4 = x

h) 6x + 7 - 2x = - x - 8

4x + 7 = - x - 8

5x = - 15

x = - 3

i) - 9 - 7x = 6 - 2x - 10

- 9 - 7x = - 2x - 4

- 5x = 5

x = - 1

j) - 4x + 3 - 7x = - 9 - 8x

3 - 11x = - 9 - 8x

12 = 3x

4 = x