Question

Resuelve las ecuaciones:
11a + 72 = 8a + 120
4 ( x 3) = 56
6x + 15 = 10x-5​

Answer 1

Respuesta: 16, 4.7 , 5

Explicación paso a paso:

11a + 72 = 8a + 120

11a - 8a = 120 - 72

3a = 48

a = 16

4 ( x 3) = 56

x3 = 14

x = 14 / 3 = 4.6666...

x = 4.7

6x + 15 = 10x-5​

15 + 5 = 10x - 6x

20 = 4x

5 = x