Question

If 3X + 2Y = 18, find X when Y
= 3.
1.-6
2.4
3.-4
4.6​

Answer 1

Answer:

2. 4

Step-by-step explanation:

3x+2y=18

3x+2(3)=18

3x=18-6

x=12/3

x=4

Answer 2

Given : The given equation is 3X + 2Y = 18

To find : The value of X, when Y is 3

Solution :

We can simply solve this mathematical problem by using the following mathematical process. (our goal is to calculate the required value of X)

Here, we will be substituting the given value of Y in the given equation, in order to calculate the value of X.

So,

3X + 2Y = 18

or, 3X + (2 × 3) = 18

or, 3X + 6 = 18

or, 3X = 18 - 6

or, 3X = 12

or, X = 12/3

or, X = 4

(This is the value of X , when value of Y is 3. That's why, this will be considered as the final result of the given mathematical problem.)

Hence, the value of X is 4