9x-2x-2+2x+2x=59-x
11x-2=59-x
11x=61-x
12x=61
x= 61/12 x =5,08
9x-2x+2+2-1-5+2x+2x=59-x
11x-2=59-x => 12x=61=> x= 5,8
7x -2 + 4x = 59 - x -> 11x - 2 = 59 - x -> 12x = 61 -> x = 61/12 = 5.08(3)

Răspunsuri

2014-01-18T21:46:51+02:00
7X+4X+X=59-2-2+1+5, adica, 12X= 61 =>x=61/12
Cam ciudat, dar asta e rezolvarea.
2014-01-18T21:50:40+02:00
=9x-2x+2+2-1-5+2x+2x=59-x
11x-2=59-x
11x+x=59+2
12x=61/:12
x=5,08(3)