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प्रश्न
Solve: `15/4 - 7x = 9`.
योग
उत्तर
We have,
`15/4 - 7x = 9`
or - 7x = 9 - `15/4 ......("transposing" 15/4 "to RHS")`
or - 7x = `21/4`
or `x = 21/(4 xx (-7))` ......(Dividing both sides by - 7)
or `x = - (3 xx 7)/(4 xx 7)`
or `x = - 3/4`
Check: LHS = `15/4 - 7((-3)/4) = 15/4 + 21/4 = 36/4` = 9 = RHS
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