Question

If πx + 3y =25 and y=1 then find x

Answer 1

22x/7+3=25(Since y=1 and pi=22/7)
22x/7=22
So x=7

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Answer 2

Answer:

The value of $x$ is 7.

Step-by-step explanation:

Step 1 of 2

First, solve the equation for $x$.

Consider the given equation as follows:

$\pi x+3y=25$

Subtract $3y$ from both the side as follows:

⇒ $\pi x+3y-3y=25-3y$

On simplifying, we get

⇒ $\pi x=25-3y$

Now, divide both the sides of the equation by the number $\pi$ as follows:

⇒ $\frac{\pi x}{\pi} =\frac{25-3y}{\pi}$

⇒ $x=\frac{25}{\pi}-\frac{3}{\pi} y$ . . . . . (1)

Step 2 of 2

Find the value of $x$ when $y=1$.

Substitute the value 1 for $y$ in the equation (1) as follows:

⇒ $x=\frac{25}{\pi}-\frac{3}{\pi} (1)$

Simplify as follows:

⇒ $x=\frac{25}{\pi}-\frac{3}{\pi}$

⇒ $x=\frac{22}{\pi}$

⇒ $x=\frac{22}{22/7}$ (Since $\pi=\frac{22}{7}$)

⇒ $x=7$

Therefore, the value of $x$ is 7 when y = 1.

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