A. 25x + 2x = 10x - 5 + 20 25x + 2x - 10x = - 5 + 20 17x = 15 x = 15 / 17
B.
10x + 6 = - 8x + 3 10x + 8x = 3 - 6 18x = - 3 x = - 3 / 18 x = - 1 / 6
C.
24x + 6x + 2 - 6 = 5x + 4 - 2 + 10 24x + 6x - 5x = 4 - 2 + 10 - 2 + 6 25x = 16 x = 16 / 25
D.
12x + 8 + 3 = 14x - 3x - 2 12x - 14x + 3x = - 2 - 8 - 3 x = - 13
E.
30 + 2x - 4x = 6 + 2x - 10 2x - 4x - 2x = 6 - 10 - 30 - 4x = - 34 x = 34 / 4 x = 17 / 2
F.
15 + 30x = 6 - 6x 30x + 6x = 6 - 15 36x = - 9 x = - 9 / 36 x = - 1 / 4
G.
25 + 10x + 5x = 5 + 6x - 2 10x + 5x - 6x = 5 - 2 - 25 9x = - 22 x = - 22 / 9
H.
14x + 6x - 3 = 6 + 8 + x 14x + 6x - x = 6 + 8 + 3 19x = 17 x = 17 / 19.