Question

solve the equation- 15/4-7x=9

Answer 1

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Answer 2

Answer:

$\sf\leadsto -\dfrac{3}{4}$

$\small\underline\frak{we\: have, }$

$\leadsto\sf \: \: \: \: \: \: \: \: \: \: \: \: \: \frac{15}{4} - 7x = 9$

$\huge\underline\textsf{Explantion:- }$

$\underbrace{\red{\sf{ Transposing \:</p><p> \dfrac{15}{4} \: to \: RHS }}}$

$\leadsto\sf- 7x = \frac{21}{4}$

$\leadsto\sf x = \frac{21}{4 \times ( - 7)}$

$\underbrace{\red{\sf{dividing \:both\: side \:by -7}}}$

$\leadsto\sf x = \frac{3 \times 7}{4 \times 7}$

$\leadsto\sf x = - \frac{3}{4}$

$\huge\underline\textsf{Verification:- }$

$\implies\sf \frac{15}{4} - 7( \frac{ - 3}{4} )$

$\implies\sf \frac{15}{4} + \frac{21}{4}$

$\implies\sf \frac{\cancel{36}}{\cancel4}$

$\implies\sf 9 = \: rhs$