Question

Resolver:
a) 3 (x + 7) - 6 = 2 ( x + 8)
b) 2 (x - 17) = x - 3 (12 - 2x)

Answer 1

A) 3x+21-6=2x+16
x=16-21+6
x=1
b)
2x-34=x-36+6x
-34+36=5x
2=5x
x=0.4

Answer 2

A) 3 ( x + 7 ) - 6 = 2 ( x +8 )
   3x + 21 - 6 = 2x + 16
   3x - 2x +15 = 16
   x  = 16 - 15
   x = 1

b) 2 (x - 17) = x - 3 (12 - 2x)
    2x -34 = x - 36 + 6x
    2x - - 34 = 7x - 36
    2x - 7x = -36 + 34
    -5x = -2
    x = -2 : -5
    x = 0.4 = 2/5