Question

I need equation and solution. The perimeter of an equilateral triangle is

Answer 1

Answer:

• The value of x is 6.

Step-by-step explanation:

We know that:

• Perimeter of triangle = 3(4x - 3) = 63 in.

Work:

• 3(4x - 3) = 63 in.
• => 12x - 9 = 63 in.
• => 12x = 72 in.
• => x = 72/12
• => x = 6

Hence, the value of x is 6.

Hoped this helped.

$BrainiacUser1357$

Answer 2

Answer:

The value of x is 6.

Step-by-step explanation:

Question :

The perimeter of an equilateral triangle is 63 inches. If the length lf each side is (4x - 3), find the value of x.

$\begin{gathered}\end{gathered}$

Solution :

As we know that the formula of perimeter of equilateral triangle is 3a.

Now, according to the question :

$\begin{gathered}\longrightarrow\sf{Perimeter = 3a}\end{gathered}$

$\begin{gathered}\longrightarrow\sf{63 = 3(4x - 3)}\end{gathered}$

$\begin{gathered}\longrightarrow\sf{63 = (4x \times 3 - 3 \times 3)}\end{gathered}$

$\begin{gathered}\longrightarrow\sf{63 = (12x - 9)}\end{gathered}$

$\begin{gathered}\longrightarrow\sf{63 = 12x - 9}\end{gathered}$

$\begin{gathered}\longrightarrow\sf{12x = 63 + 9}\end{gathered}$

$\begin{gathered}\longrightarrow\sf{12x = 72}\end{gathered}$

$\begin{gathered}\longrightarrow\sf{x = \frac{72}{12}}\end{gathered}$

$\begin{gathered}\longrightarrow\sf{x = 6}\end{gathered}$

$\begin{gathered} \star{\underline{\boxed{\sf{\red{x = 6}}}}}\end{gathered}$

Hence, the value of x is 6.

$\rule{300}{2.5}$