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प्रश्न
If `[[3x,7],[-2,4]]=[[8,7],[6,4]]`, find the value of x
उत्तर
`[[3x,7],[-2,4]]=[[8,7],[6,4]]`
⇒12x+14=32−42
⇒12x+14=−10
⇒12x=−24
⇒x=−2
Hence, the value of x = −2.
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