Question

solve:
15/4-7x=9
don't give unnecessary answers it's urgent yaroo​

Answer 1

Solution :

$\frac{15}{4} - 7x = 9 \\ \\ \frac{15}{4} - 9 = 7x \\ \\ \frac{15 - 36}{4} = 7x \\ \\ \frac{21}{4} = 7x \\ \\ 21 = 28x \\ x = \frac{21}{28} \\ \\ x = \frac{3}{4}$

Answer 2

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

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

$\frac{15}{4} - \frac{9 \times 4}{1 \times 4} = 7 x$

$\frac{15}{4} - \frac{36}{4} = 7x$

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

$- 21 = 7x \times 4$

$- 21 = 28x$

$28x - 21$

$x = \frac{ - 21}{28}$

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

$\huge\sf\fbox\green{Checking}$

$\frac{15}{4} - 7( \frac{ - 3}{4}) = 9$

$\frac{15}{4} - (\frac{ - 21}{4}) = 9$

$\frac{15}{4} + \frac{21}{4} = 9$

$\frac{36}{4} = 9$

$9 = 9$

Therefore , LHS = RHS