Question

(x − 1) − (x − 4) + (12 + x) = 17

Answer 1

Explicación paso a paso:

(x-1) - (x-4) + (12+x) = 17

x - 1 - x + 4 + 12 + x = 17

3 + 12 + x = 17

15 + x = 17

x = 17 - 15

x = 2