a, 3x – 10 = 2x + 13 | b, x + 12 = -5 – x |
c, x + 5 = 10 –x | d, 6x + 23 = 2x – 12 |
e, 12 – x = x + 1 | f, 14 + 4x = 3x + 20 |
g, 2.(x-1) + 3(x-2) = x -4 | h, 3.(4 – x) – 2.( x- 1) = x + 20 |
i, 3(x – 2) + 2x = 10 | j, (x + 2).(3 – x) = 0 |
k, 4.( 2x + 7) – 3.(3x – 2) = 24 | l, (-37) – |7 – x| = – 127 |
m, (x + 5).(x.2 – 4) = 0 | n*, 3x + 4y –xy = 15 |
o, (15 – x) + (x – 12) = 7 – (-5 + x)
p, x -{57 – [42 + (-23 – x)]} = 13 –{47 + [25 – (32 -x)]}