Question

3. Resuelve las siguientes ecuaciones lineales:
a) 3x + 6 = 4x + 5 b) 3x – 6 = 2x + 6 c) x – 8 = 5(x + 4)
e) 2(x – 3) = x – 5 f) 2(x – 4) = 3(x + 1) g) 17 – x = 2x – 1 NOTAS IMPORTANTES:
d) 5x – 8 = 4x
h) 8 – 4x = 3(5 – x) ayudaaa

Answer 1

Respuestas:

Paso a paso.

a) 3x + 6 = 4x + 5

3x + 4x = 5 - 6

-x = -1

b) 3x – 6 = 2x + 6

3x - 2x = 6 + 6

x = 12

c) x – 8 = 5(x + 4)

x - 8 = 5x + 20

x - 5x = 8 + 20

-4x = 28

x = -7

e) 2(x – 3) = x – 5

2x + 6 = x - 5

2x - x = -5 + 6

x = 1

f) 2(x – 4) = 3(x + 1)

2x - 8 = 3x + 3

2x + 3x = 3 + 8

-x = 11

x = -11

g) 17 – x = 2x – 1

-x - 2x = -1 - 17

-3x = -18

x = 6

NOTAS IMPORTANTES:

d) 5x – 8 = 4x

5x - 4x = 8

x = 8

h) 8 – 4x = 3(5 – x)

8 - 4x = 15 - 3x

-4x + 3x = 15 - 8

-x = 7

x = -7

Espero haya podido ayudarte. Coronita si te sirvió!!