Question

Cuánto vale la X?
A. 3x+-10=x+13
B. 15x+1=6x+9+19
C. 14x+13+2x-7=11x+81​

Answer 1

Respuesta:

Explicación paso a paso:

A. 3x - 10= x +13

3x - x = 13 + 10

2x = 23

x = 23/2

B. 15x + 1 = 6x + 9 + 19

15x - 6x = 19 + 9 - 1

9x = 27

x = 27/9

x = 3

C. 14x + 13 + 2x - 7 = 11x + 81​

14x + 2x - 11x = 81 - 13 + 7

5x = 75

x = 75/5

x = 15