For the equation: 3z+72 = 52, 'z' is equal to ____ ?
1/3
-1/3
-2/3
2/3
The correct option is B. −13
Given: 3z+72=52
3z=52−72
3z=−22
3z=−1
z=−13
For the equation: 3z + 72 = 52, 'z' is equal to ____ ?