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Given the formula below, solve for [tex]$x$[/tex].

[tex]\[ y - y_1 = m \left( x - x_1 \right) \][/tex]

A. [tex]\( x = \frac{y - y_1 + x_1}{m} \)[/tex]

B. [tex]\( x = \frac{y - y_1}{m} - x_1 \)[/tex]

C. [tex]\( x = \frac{y - y_1}{m} + x_1 \)[/tex]

D. [tex]\( x = \frac{m \left( y - y_1 \right)}{x_1} \)[/tex]


Sagot :

Certainly! Let's solve the equation step by step:

We start with the given equation:

[tex]\[ y - y_1 = m (x - x_1) \][/tex]

Our goal is to solve for [tex]\( x \)[/tex].

### Step 1: Distribute [tex]\( m \)[/tex]
We can distribute [tex]\( m \)[/tex] on the right-hand side:

[tex]\[ y - y_1 = m x - m x_1 \][/tex]

### Step 2: Isolate the term involving [tex]\( x \)[/tex]
To isolate [tex]\( x \)[/tex], we add [tex]\( m x_1 \)[/tex] to both sides of the equation:

[tex]\[ y - y_1 + m x_1 = m x \][/tex]

### Step 3: Solve for [tex]\( x \)[/tex]
Now, we divide both sides by [tex]\( m \)[/tex] to solve for [tex]\( x \)[/tex]:

[tex]\[ x = \frac{y - y_1 + m x_1}{m} \][/tex]

This can be simplified as:

[tex]\[ x = \frac{y - y_1}{m} + \frac{m x_1}{m} \][/tex]

Since [tex]\(\frac{m x_1}{m}\)[/tex] simplifies to [tex]\( x_1 \)[/tex], we get:

[tex]\[ x = \frac{y - y_1}{m} + x_1 \][/tex]

### Conclusion
Now, let's compare this solution with the given options:

A. [tex]\( x = \frac{y - y_1 + x_1}{m} \)[/tex]

B. [tex]\( x = \frac{y - y_1}{m} - x_1 \)[/tex]

C. [tex]\( x = \frac{y - y_1}{m} + x_1 \)[/tex]

D. [tex]\( x = \frac{m \left(y - y_1\right)}{x_1} \)[/tex]

The correct option that matches our simplified solution is:

[tex]\[ \boxed{C} \][/tex]

Thus, the correct solution is [tex]\( x = \frac{y - y_1}{m} + x_1 \)[/tex], which corresponds to option C.
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