Question

resolver.
x -2 = - 3 x - 8

x + . ( x - 1 ) - 7 = 6

( 9 x + 6 ) : 3 + 2 = 13

Answer 1

Resolver.

x - 2 = - 3x - 8
x + 3x = - 8 + 2
4x = - 6
x = - 6/4        Simplificas sacas mitad
x = - 3/2


x + (x - 1) - 7 = 6
x +x - 1 - 7 = 6
2x - 8 = 6
2x = 6 + 8
2x = 14
x = 14/2
x = 7


(9x + 6): 3 + 2 = 13
(9x + 6): 3 = 13 - 2
(9x + 6): 3 = 11
9x + 6 = 11 * 3
9x + 6 = 33
9x = 33 - 6
9x = 27
x = 27/9
x = 3