Question

ayúdenme please :'))

Answer 1

Respuesta:

1) 3x - 5 = 4

3x = 4 + 5

3x = 9

x = 9/3

x = 3

2) 6x + 3 - 7 = 5x

6x - 5x = 7 - 3

x = 4

3) 4x - 5 = x + 7

3x = 12

x = 4

4) 3x - 8 +7x = 8

10x = 16

x = 16/10

x = 8/5 (simplifique por 2)

5) 2x - 5 = 7 - x

3x = 12

x = 4

6) 7x + 3 = 2x + 3

5x = 0

x = 0/5

x = 0

7) 10x + 3(2 - 3) = 7(3x + 2)

10x - 3 = 21x + 14

-11x = 17

x = 17/-11

8) 4x + 2(5 - 1) = 3(2x + 4)

4x + 8 = 6x + 12

-4 = 2x

-2 = x