(1)4x - 2 = 3 - x (2) -7x + 2 = 2x - 4 (3) -x = 负五分之二x + 1 (4) 2x - 1/3 = - (x/3) + 2 (5) x = (3/2)x + 16 (6)1 - (3/2) x = 3x + 5/2 注:“ / ” 为分数线
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(1)4x-2=3-x(2)-7x+2=2x-4(3)-x=负五分之二x+1(4)2x-1/3=-(x/3)+2(5)x=(3/2)x+16(6)1-(3/2)x=3x+5/2注:“/”为分数线(1)
(1)4x - 2 = 3 - x (2) -7x + 2 = 2x - 4 (3) -x = 负五分之二x + 1 (4) 2x - 1/3 = - (x/3) + 2 (5) x = (3/2)x + 16 (6)1 - (3/2) x = 3x + 5/2 注:“ / ” 为分数线
(1)4x - 2 = 3 - x (2) -7x + 2 = 2x - 4 (3) -x = 负五分之二x + 1 (4) 2x - 1/3 = - (x/3) + 2 (5) x = (3/2)x + 16 (6)1 - (3/2) x = 3x + 5/2 注:“ / ” 为分数线
(1)4x - 2 = 3 - x (2) -7x + 2 = 2x - 4 (3) -x = 负五分之二x + 1 (4) 2x - 1/3 = - (x/3) + 2 (5) x = (3/2)x + 16 (6)1 - (3/2) x = 3x + 5/2 注:“ / ” 为分数线
(1)4X-2=3-X (2) -7X+2=2X-4 (3)-X=-2/5X+1 (4)2X-1/3
解; 4X+X = 3+2 -7X-2X=-4-2 -7/5X=1
5X=5 -9X =-6 X= -5/7
X=1 X=2/3
*-----------------------------------------------*| 6 4 X | 8 X X | X X 5 || X X X | X X X | X 7 8 || X X X | X X X | X X X ||---------------+---------------+--------------- || X X X | X X X | 5 1 X || X X X | X 6 X | X X X || 8 X X | 3 5 X | 2 X X ||
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(x+1)(x+2)(x+3)(x+4)=24
(x-1)(x-2)(x-3)(x-4)=48
(x+1)(x+2)(x+3)(x+4)=24
x-1+x+2+x/3+4x=77
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