What is the value of the expression below when z, equals, 9z=9?
7, z, plus, 8
7z+8
To find the value of the expression when z equals 9 (z=9), you will simply substitute 9 in place of z in the expression:
7z + 8
Replace z with 9:
7 * 9 + 8
Now calculate the values:
63 + 8 = 71
Therefore, when z = 9, the value of the expression 7z + 8 is 71.