Question

Explain why the following is not a system of linear equations.
3 y minus 13 z minus 2.23y−13z−2.2
negative 5 y plus z−5y+z
Choose the correct answer below.
A.
The given examples are expressions.The given examples are expressions.
B.
The given examples are equations.The given examples are equations.
C.
The given examples have exponents greater than 1.The given examples have exponents greater than 1.
D.
There are more than two variables.There are more than two variables.
E.
It is a system of linear equations.