evalute 5y - 3z when y = 10 and z = 4

To evaluate 5y - 3z when y = 10 and z = 4, we substitute the given values into the expression:

5(10) - 3(4)

This simplifies to:

50 - 12 = 38

Therefore, when y = 10 and z = 4, 5y - 3z equals 38.