Tìm x

Bài toán 9 : Tìm x, biết.
a.      2(x – 5) – 3(x + 7) = 14 k. -7(5 – x) – 2(x – 10) = 15

b.     5(x – 6) – 2(x + 3) = 12 l. 4(x – 1) – 3(x – 2) = -|-5|

c.      3(x – 4) – (8 – x) = 12 m. -4(x + 1) + 89x – 3) = 24

d.     -7(3x – 5) + 2(7x – 14) = 28 n. 5(x – 30 – 2(x + 6) = 9

e.      5(3 – 2x) + 5(x – 4) = 6 – 4x o. -3(x – 5) + 6(x + 2) = 9

f.       -5(2 – x) + 4(x – 3)  = 10x – 15 p. 7(x – 9) – 5(6 – x) = – 6 + 11x

g.     2(4x – 8) – 7(3 + x) = |-4|(3 – 2) q. 10(x – 7) – 8(x + 5) = 6.(-5) + 24

h.     8(x – |-7|) – 6(x – 2) = |-8|.6 – 50