1) 1/4 - 1/3a = 41 - a/3 = 4-a/3 = 3a = -9
2) 4x - 14 = 8x + 184x - 8x = 14 + 18-4x = 32x = -8
3) 0.3 x (5x - 7) - 3 x (0.2x + 3.2) = 01.5x - 2.1 - 0.6x - 9.6 = 00.9x - 11.7 = 00.9x = 11.7x = 11.7 / 0.9x = 13
1) 1/4 - 1/3a = 4
1 - a/3 = 4
-a/3 = 3
a = -9
2) 4x - 14 = 8x + 18
4x - 8x = 14 + 18
-4x = 32
x = -8
3) 0.3 x (5x - 7) - 3 x (0.2x + 3.2) = 0
1.5x - 2.1 - 0.6x - 9.6 = 0
0.9x - 11.7 = 0
0.9x = 11.7
x = 11.7 / 0.9
x = 13