Solve: [tex]3x - 7 = 7x - 14[/tex]

A. [tex]x = \frac{4}{7}[/tex]

B. [tex]x = \frac{7}{4}[/tex]

C. [tex]x = -\frac{4}{7}[/tex]

D. [tex]x = 3[/tex]



Answer :

To solve the equation [tex]\( 3x - 7 = 7x - 14 \)[/tex], follow these steps:

1. Rewrite the equation to move all the terms involving [tex]\( x \)[/tex] to one side and the constants to the other side. Start by subtracting [tex]\( 3x \)[/tex] from both sides:
[tex]\[ 3x - 7 - 3x = 7x - 14 - 3x \][/tex]
Simplify this to:
[tex]\[ -7 = 4x - 14 \][/tex]

2. Next, isolate the term with [tex]\( x \)[/tex]. Add 14 to both sides to move the constants:
[tex]\[ -7 + 14 = 4x - 14 + 14 \][/tex]
Simplify this to:
[tex]\[ 7 = 4x \][/tex]

3. Finally, solve for [tex]\( x \)[/tex] by dividing both sides by 4:
[tex]\[ x = \frac{7}{4} \][/tex]

Therefore, the value of [tex]\( x \)[/tex] that solves the equation [tex]\( 3x - 7 = 7x - 14 \)[/tex] is:
[tex]\[ x = \frac{7}{4} \][/tex]

This matches the option [tex]\( x = \frac{7}{4} \)[/tex] from the given choices.