2 2
a)x-2x+3x-x = x
b)3-6a + 3a + 1 = 4 - 3a
2 2
c)3a -6a-6+6a-3a = -6
2 2 2
d)x + 4x - 3x-12 + 12 - x = x +0 = x
2 2 2 2
e)x -7x + 5 - (x - 8x + 8) = x - 7x = 5 -( - 7x + 8) = x - 7x +5 + 7x - 8 =x -3
2 3
f) Scuze nu stiu, doar raspunsul = -11x + 9x + 3 -x
2 2 2 2
g)x + 4x - 5x - 20 - 3x + 6x + 5x - 3gx - x +7 = 3x - 31x - 13
Sper ca te-am ajutat