Question #de480
2 Answers
Jan 7, 2018
Explanation:
Substitute in
The expression becomes
Now, we can combine like-terms.
Jan 7, 2018
0
Explanation:
To find the value of an expression, we need to have a single variable.
We can do that by looking at the expression
Then simplify by combining like terms.
Isolate y to find value
Value is therefore 0