Convert the following into valid expressions:
1. First \(z\) is multiplied by 10 and then added to \(-\)18 times \(h\).
2. First \(x\) is multiplied by \(-\)17 and then subtract 45 from the result.
3. First \(v\) is multiplied by 17 and then \(p\) multiplied by 19 is added to the result.
[Note: Always enter the co-efficient along with the variable first then followed by the constant. In case of \(2\) variables, always enter the co-efficient along with the variables in the order specified in the question.]