Three maths equations. please can u solve it.....?

Question

1) (5x-4)/8 - (x-3)/5 = (x+6)/4

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2) 3/4(7x-1) + [2x- (1-x)/2 ] =x + 3/2

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3) 6(3m-1) + 3(2m+3) = 1-7m

you can answer any of the three. and if you can then you can answer full.

Answer 1

1)

(5x - 4)/8 - (x - 3)/5 = (x + 6)/4

40[(5x - 4)/8 - (x - 3)/5] = 40(x + 6)/4

5(5x - 4) - 8(x - 3) = 10(x + 6)

5*5x - 5*4 - 8*x + 8*3 = 10*x + 10*6

25x - 20 - 8x + 24 = 10x + 60

25x - 8x - 10x = 20 - 24 + 60

7x = 56

x = 56/7

x = 8

2)

3/4(7x - 1) + [2x - (1 - x)/2] = x + 3/2

3(7x - 1)/4 + 2x - (1 - x)/2 = x + 3/2

4[(21x - 3)/4 + 2x - (1 - x)/2] = 4(x + 3/2)

21x - 3 + 4(2x) - 2(1 - x) = 4(x) + 2(3)

21x - 3 + 8x - 2*1 + 2*x = 4x + 6

21x + 8x - 3 - 2 + 2x = 4x + 6

29x + 2x - 4x = 5 + 6

27x = 11

x = 11/27

3)

6(3m - 1) + 3(2m + 3) = 1 - 7m

6*3m - 6*1 + 3*2m + 3*3 = 1 - 7m

18m - 6 + 6m + 9 = 1 - 7m

18m + 6m + 7m = 1 + 6 - 9

31m = -2

m = -2/31