Question

If 3 is added to twice a number ,the result is 15 . Find the number​

Answer 1

Answer:

your answer is 6

Step-by-step explanation:

2x+3=15

2x=15-3

2x=12

X=12÷2

X=6

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Answer 2

The integer number is 6 as calculated using a linear equation.

Let the unknown number be "z".

A statement is given which signifies an algebraic expression of a number.

We will use this algebraic expression to form a linear equation using the variable z  and solve for z to get the required number.

twice the given number is $2 \times z =2z$

3 is added to twice the number, so we get $3+2z$

Now the above expression is equal to 15.

So the linear equation looks like this:

$3+2z = 15\\\\or, 2z =15-3\\\\or, 2z =12\\\\or, z=6$

A linear equation in one variable denotes a straight line in the coordinate axis parallel to either axis.

Therefore the required integer number calculated using a linear equation and arithmetic operations is 6.

To learn more about linear equation  visit:

https://brainly.in/question/10190214

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