Respuesta :
6x(x-1) = 21 - x that’s the answer i think im not good with math
~Answer
1) 6x + 2 = 1x
____________
6x + 2 = 1x
6x + 2 = x
6x = x - 2
5x = -2
5x/5 = -2/5
x = - 2/5 ☑