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8).

2x - 3(x+4) = -5 given

2x -3x -3*4 = -5

-x - 12 = -5

-x = -5 +12

-x = 7

x = -7 ------->B answer

9).

given

-3( 5 - 6) - 4(2 -3) = -3(-1) - 4(-1)

= 3 + 4 = 7 ----> B answer

10) .

given 20 - 4/5 x >= 16

-4/5 x >= 16 -20

-4/5 x >= -4

x >= 4 * 5/4

x>= 5------> B anwser

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