A)
1 - ( X - 3 / 2 ) = ( 2 - X / 3 ) + 4
6 - 3 * ( X - 3 ) = 2 * ( 2 - X ) + 24 ; общий знаменатель 6
6 - 3X + 9 = 4 - 2X + 24
15 - 3X = 28 - 2X
15 - 28 = - 2X + 3X
X = - 13
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Б )
3 * ( 2M + 1 ) + 12 = 2M - ( 6 - M ) ; общий знаменатель 12
6M + 3 + 12 = 2M - 6 + M
6M - 3M = - 6 - 15
3M = - 21
M = - 7
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В )
3 * ( 5X - 7 ) - 2 * ( 3X + 1 ) = X + 17 ; общий знаменатель 6
15X - 21 - 6X - 2 = X + 17
9X - 23 = X + 17
8X = 40
X = 5
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Г )
X - 2 * ( X - 3 *( X - 4 )) = 1
X - 2 * ( X - 3X + 12 ) = 1
X - 2 * ( - 2X + 12 ) = 1
X + 4X - 24 = 1
5X = 25
X = 5
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Д )
4 * ( 3X - 5 ) = X + 3
12X - 20 = X + 3
11X = 23
X = 23/11
X = 2 ( 1/11 )
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E )
2 - X = 3 * ( X - 3 )
2 - X = 3X - 9
4X = 11
X = 2,75