Which of the following equations have solutions that are z=3 ? Select all that apply.(2 points) Responses 9z+22=26 54−8z=30 9z−5=22 5z+40=62
To find out which equations have solutions that are z = 3, we simply substitute z = 3 into each equation and see if it solves them.
9z + 22 = 26
9(3) + 22 = 26
27 + 22 = 26
49 ≠ 26
54 - 8z = 30
54 - 8(3) = 30
54 - 24 = 30
30 = 30
9z - 5 = 22
9(3) - 5 = 22
27 - 5 = 22
22 = 22
5z + 40 = 62
5(3) + 40 = 62
15 + 40 = 62
55 ≠ 62
Therefore, the equations that have solutions z = 3 are:
- 54 - 8z = 30
- 9z - 5 = 22