Question

Resuelve las siguientes ecuaciones:​

Answer 1

Respuesta:

2x + 12 = 4x - 10

2x - 4x = - 10 - 12

2x = - 22

x = - 22 ÷ 2

x = - 11

7(x - 18) = 3(x - 14)

7x - 126 = 3x - 42

7x - 3x = - 42 + 126

4x = 84

x = 84÷4

x = 21

7y - 5

——— = 8

2

7y - 5 = 16

7y = 16 + 5

7y = 21

7y = 21 ÷ 7

y = 3