The value of (x-y) is 16
Further explanation:
We have to use the given values to find the value
Given

We will use:

Simplifying by using: 
So,

As we know that x+y=4
Putting the value in equation

Dividing both sides by 4

The value of (x-y) is 16
Keywords: Algebraic formulas, Simplification
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If you do the math it equals to 3/7 so x=0.428... so no cuz it doesn’t give a straight answer unless it’s 3/7
Answer:
can you show a pic tell me in the comments
Step-by-step explanation:
Answer:
7
Step-by-step explanation:
You can divide both 14 and 21 by seven and get a whole number.