Question

If. 15/4 - 7x = 9, then x=

Answer 1

Answer:

15/4-7x= 9

15/4-9=7x

-21/4=7x

-21/4×7= x

-21/28= x

-3/4= x

Answer 2

$\large\frak{\underline{\underline{\red{Solution:-}}}}$

$\purple{\implies\:\:}$ $\sf{\dfrac{15}{4}-7x=9 }$

$\purple{\implies\:\:}$ $\sf{-7x=9-\dfrac{15}{4}  }$

$\purple{\implies\:\:}$ $\sf{-7x=\dfrac{21}{4}  }$

$\purple{\implies\:\:}$ $\sf{x=\dfrac{21}{4 \times (-7)}  }$

$\purple{\implies\:\:}$ $\sf{x=-\dfrac{3 \times 7}{4 \times 7} }$

$\purple{\implies\:\:}$ $\sf{x=\dfrac{-3}{4} }$

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