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0
Answer:
- 3x/2x + 5/1 =1/3
Step-by-step explanation:
(2x+1) 1 = (3x+5) 3
2x+1 = 9x+15
2x-9x = 15-1
-7x = 14
x= 14/-7
x= -2
Step by step explanation
Answered by
2
Step-by-step explanation:
1. 3x+5/2x+1 = 1/3
3(3x+5) = 2x+1
9x+15 = 2x+1
9x-2x = 1-15
7x = -14
x = -14/7
x = -2
2. x+6/4+x-3/5 = 5x-4/8
5(x+6)+4(x-3)/20 = 5x-4/8
5x+30+4x-12/20 = 5x-4/8
5x+4x+30-12/20 = 5x-4/8
9x+18/20 = 5x-4/8
8(9x+18) = 20(5x-4)
72x+144= 100x -80
72x-100x = -80-144
-28x = -224
28x = 224
x = 224/28
x = 8
3. x/4+x/6 = x-7
3x+2x/12 = x-7
5x/12 = x-7
5x/12-x = -7
5x-12x/12 = -7
-7x/12 = -7
7x/12 = 7
x = 7×12/7
x = 12
4. 2/3 x +1 = 7/3
2/3 x = 7/3-1
2/3 x = 7-3/3
2/3x = 4/3
x = 4/3×3/2
x = 2
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