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प्रश्न
If `"a" = (2x - 3)/(5), "b" = (3x - 2)/(3)`and 2(3a - b) + 1 = 0, find the value of 'x'.
बेरीज
उत्तर
Given `"a" = (2x - 3)/(5), "b" = (3x - 2)/(3)`
Consider,
2(3a - b) + 1 = 0
Substituting the expressions for a and b in the equation, we get
`2[3((2x - 3)/5) - (3x - 2)/(3)] + 1` = 0
⇒ `2[(6x - 9)/5 - (3x - 2)/3] + 1` = 0
⇒ `2[(3(6x - 9) - 5(3x - 2))/(15)] + 1` = 0
⇒ `2[(18x - 27 - 15x + 10)/(15)] + 1` = 0
⇒ `2[(3x - 7)/(15)] + 1` = 0
⇒ `2[(3x - 7)/(15)]` = -1
⇒ 3x - 7 = `-1(15/2)`
⇒ 3x - 7 = `-(15)/(2)`
⇒ 3x = `-(15)/(2) + 7`
⇒ 3x = `(-15 + 14)/(2)`
⇒ x = `-(1)/(6)`.
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Linear Equation in Two Variables
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