Solve: 3/8(14x-2)-1/2{4x-(1-x)}=x+3/2?
回答 (3)
2018-01-12 6:20 pm
(3/8)(14x - 2) - (1/2){4x - (1 - x)} = x + (3/2)
(3/8)(14x - 2) - (1/2)(4x - 1 + x) = x + (3/2)
(3/8)(14x - 2) - (1/2)(5x - 1) = x + (3/2)
[(3/8)(14x - 2) - (1/2)(5x - 1)] * 8 = [x + (3/2)] * 8
3(14x - 2) - 4(5x - 1) = 8x + 12
42x - 6 - 20x + 4 = 8x + 12
14x = 14
x = 1
(3/8)(14x - 2) - (1/2)(4x - 1 + x) = x + (3/2)
(3/8)(14x - 2) - (1/2)(5x - 1) = x + (3/2)
[(3/8)(14x - 2) - (1/2)(5x - 1)] * 8 = [x + (3/2)] * 8
3(14x - 2) - 4(5x - 1) = 8x + 12
42x - 6 - 20x + 4 = 8x + 12
14x = 14
x = 1
2018-01-12 9:35 pm
(3/8)(14x-2) -(1/2)(4x-(1-x))= x+3/2
(3/8)(14x-2) -(1/2)(4x-1+x) = x+3/2
Multiply everything by 8
3(14x-2) -4(4x-1+x) = 8x+12
42x-6 -16x+4-4x = 8x+12
move all x terms to the left and numbers to the right
42x-16x-4x-8x = 12+6-4
14x=14
x=1
(3/8)(14x-2) -(1/2)(4x-1+x) = x+3/2
Multiply everything by 8
3(14x-2) -4(4x-1+x) = 8x+12
42x-6 -16x+4-4x = 8x+12
move all x terms to the left and numbers to the right
42x-16x-4x-8x = 12+6-4
14x=14
x=1
2018-01-12 7:47 pm
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