Question

Solve 15/4 -7x = 9 plz answer fast

Answer 1

Answer:

-0.75

Step-by-step explanation:

15/4 - 7x =9

-7x = 9 - 15/4

-28x = 36-15

-28x = 21

x = -21/28

x = -3/4 = -0.75

Answer 2

Answer:

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

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

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

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

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

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

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

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

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

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

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

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

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

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

$\implies\sf 9 = \: Rhs$