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5 votes
What is the value of x in the equation/x-y=

04
08
O 80
200
= 30, when y = 15?

1 Answer

4 votes

the value of x is =45

Explanation:

Given: x - y =30 and y = 15

Let us solve the equation for given y.

Let us use the substitution method to solve the linear equations.

Substitute y= 15 in x - y =30

⇒ x - 15 = 30

⇒x = 30 + 15

⇒x = 45

The value of x in the equation x - y = 30, when y = 15 is 45. A mathematical equation that represents the relationship of two expressions on either side of the sign. It mostly has one variable and is equal to a symbol. Example: 2x – 4 = 2. In the given example, x is a variable.

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