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सी.आई.एस.सी.ई.आईसीएसई ICSE Class 7

Solve: (2"X" + 1)/("3x" - 2) = 1 1/4 - Mathematics

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प्रश्न

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

योग
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उत्तर

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

⇒ `(2"x" + 1)/("3x" - 2) = 5/4`

By cross multiplication

(3x - 2)× 5 = 4 (2x + 1)

⇒ 15x - 10 = 8x + 4

⇒ 15x - 8x = 4 + 10

⇒ 7x = 14

⇒ x = `14/7 = 2`

∴ x = 2

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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 24
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