हिंदी

If = 34x-2 and = x + 6, then find the value of: 2 – 32

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प्रश्न

If = `3/4x - 2` and = x + 6, then find the value of:

2 – `3/2`

योग
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उत्तर

Given, = `3/4x - 2` and = x + 6

2 – `3/2`  = `2 xx (12 + 6) - 3/2(3/4 xx 1 - 2)`

= `36 - 3/2((3 - 2 xx 4)/4)`

=  `36 - 3/2((3 - 8)/4)`

= `36 - 3/2((-5)/4)`

= `36 + 15/8`

= `(36 xx 8 + 15)/8`

= `(288  + 15)/8`

= `303/8`

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अध्याय 10: Algebraic Expressions - Exercise [पृष्ठ ३२७]

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एनसीईआरटी एक्झांप्लर Mathematics [English] Class 7
अध्याय 10 Algebraic Expressions
Exercise | Q 90 (ii) | पृष्ठ ३२७

संबंधित प्रश्न

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  1. We may first add 14 and 27 to get 41 and then add 13 to it to get the total sum 54 or
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This can be done for any three numbers. This property is known as the associativity of addition of numbers. Express this property which we have already studied in the chapter on whole numbers, in a  general way, by using variables a, b and c.


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