Question

pls answer the following questions​

Answer 1

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

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

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

$7x \times 4 = 21$

$28x = 21$

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

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

Answer 2

Answer:

The option c is answer x$=\frac{-3}{4}$

Step-by-step explanation:

In accordance with the information provided in the question,

Given the data in question $\frac{15}{4} -7x=9$

Arrange equation multiply both side by 4 LHS side and RHS side

$4\times\frac{15}{4} -7x\times4=9\times4$

$15-28x=36$

We have find the value of "x" in the above question.

Here we will use the transposition method.

Hence, for solving the above equation, we will solve it by separating the like terms at one side,

So, we will shift 15 from LHS to RHS the sign will change from positive to negative,

As we get,

$15-28x=36$

$-28x=36-15\\-28x=21$

$x=\frac{21}{-28} \\x=\frac{-3}{4}$

Hence option c is answer x$=\frac{-3}{4}$