i like turtles
If you know the values of ' y ' and ' z ', then the answer is the same no matter where you are.
a+3
6+z = 3 z = 3-6 z = -3
It's algebra. A substitute for number. Ex: "x+y=z" could mean 1+2=3.
(z + 15)(z + 3)
z = 3.6
2z + 5 - xz
In algebra we consider x,y and z are variables.
z2 + 9z + 18 = z2 + 6z + 3z + 18 = z(z+6) + 3(z+6) = (z+6)*(z+3)
In algebra z is a variable. What z equals would depend on the math problem you're doing and what the answer to that problem is.
10