Math, asked by vicks4, 1 year ago

2/3(4x-1)-{4x-1-3x/2}=x-7/2

Answers

Answered by DipanshuVerma
76

2 \div 3(4x - 1)  - (4x - 1 - 3x  \div 2) =  x - 7 \div 2 \\  \frac{8x - 2}{3} (1  +  \frac{3x}{2}  )= x -  \frac{7}{2}  \\  \frac{8x - 2}{3}  \times  \frac{2 + 3x}{2}  =  \frac{2x - 7}{2}  \\ (8x - 2)(2 + 3x) = 6x - 21 \\ 24 {x}^{2}  + 16x - 4 - 6x - 6x + 21 = 0 \\ 24 {x}^{2}  + 4x - 17 = 0
Answered by tribhuan51972
126

Answer:


Step-by-step explanation:

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

8x/3-2/3-[(8x-1+3x)/2]=(x-7)/2

8x/3-2/3-[(11x-1)/2]=(x-7)/2

8x/3-2/3-[11x/2-1/2]=(x-7)/2

8x/3-2/3-11x/2+1/2=(x-7)/2

Now LCM of 2 and 3 is 6 so,

(16x-4-33x+3)/6=(x-7)/2

(-17x-1)/6=(x-8)/2

By cross multiplying

2(-17x-1)=6(x-7)

-34x-2=6x-42

-34x-6x=-42+2

-40x=-40

Minus and minus on both the side will cut so,

40x=40

taking 40 from LHS to RHS

x=40/40

x=1 is the answer


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