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सी.आई.एस.सी.ई.आईसीएसई ICSE Class 7

Solve: x - 1x - 2x - 3x - 12-x - 23-x - 34=0a - Mathematics

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प्रश्न

Solve: `("x - 1")/2 - ("x - 2")/3 - ("x - 3")/4 = 0`

योग
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उत्तर

∴ `("x - 1")/2 - ("x - 2")/3 - ("x - 3")/4 = 0`

⇒ `(6("x" - 1) -4("x" - 2)-3("x" - 3))/12 = 0`

⇒ 6(x - 1) - 4(x - 2) - 3(x - 3) = 0 × 12

⇒ 6x - 6 - 4x + 8 - 3x + 9 = 0

⇒ 6x - 4x - 3x - 6 + 8 + 9 = 0

⇒ 6x - 7x = 6 - 8 - 9

⇒ - x = 6 - 17

⇒ - x = - 11

∴ x = 11

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अध्याय 12: Simple Linear Equations (Including Word Problems) - Exercise 12 (C)

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सेलिना Concise Mathematics [English] Class 7 ICSE
अध्याय 12 Simple Linear Equations (Including Word Problems)
Exercise 12 (C) | Q 21
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