Question

If yellow marbles are three more than twice the number of red marbles. And there are ‘y’ yellow marbles. How many red marbles are there?
pls answer this question as soon as possible.​

Answer 1

Equations

Given:

Two types of marble, yellow and red.

The number of yellow marble is y.

To find:

Number of red marbles

Explanation:

Let the number of yellow marble be x.

Let the number of red marble be r.

According to question,

yellow marbles are three more than twice the number of red marbles.

Converting this into equation form,

$y=3+2r\\\\y-3=2r\\\\\frac{y-3}{2}=r$

If y will be any numerical value then ,putting that into the final equation will give number of red marbles.

Hence the number of red marbles will be $\frac{y-3}{2}$.

Answer 2

Red Marbles are (y - 3)/2 if yellow marbles (y)  are three more than twice the number of red marbles.

Given:

• Yellow marbles are three more than twice the number of red marbles.
• Yellow Marbles are 'y"

To Find:

• Red Marbles

Solution:

Step 1:

Assume that Red Marbles are x

Step 2:

yellow marbles are three more than twice the number of red marbles Hence

y = 2x + 3

Step 3:

Using transposition solve for x

y - 3 = 2x

=> (y - 3)/2 = x

=> x = (y - 3)/2

Red Marbles are (y - 3)/2