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सी.आई.एस.सी.ई.आयसीएसई ICSE Class 7

Solve: x + 1x + 4x - 4x + 13+x + 45=x - 47 - Mathematics

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प्रश्न

Solve: `("x + 1")/3 + ("x + 4")/5 = ("x - 4")/7`

बेरीज

उत्तर

`("x + 1")/3 + ("x + 4")/5 = ("x - 4")/7`

`("x + 1")/3 + ("x + 4")/5 - ("x - 4")/7 = 0`

`(35(x + 1) + 21(x + 4) - 15(x - 4))/105 = 0`

35x + 35 + 21x + 84 - 15x + 60 = 0

41x + 179 = 0

41x = -179

x = `(-179)/41`

x = -4`15/41`

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Simple Linear Equations in One Variable
  या प्रश्नात किंवा उत्तरात काही त्रुटी आहे का?
पाठ 12: Simple Linear Equations (Including Word Problems) - Exercise 12 (C)

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सेलिना Concise Mathematics [English] Class 7 ICSE
पाठ 12 Simple Linear Equations (Including Word Problems)
Exercise 12 (C) | Q 22

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