Question

Can someone Help me I'm Stuck on these three Questions

Z+(-7)=-8
13=Z+18
12=T+3
Explain your answer
Thanks For the Help:)

Answer 1

1.) z = -1

2.) z = -5

3.) t = 9

Explanation:

z + (-7) = -8

=> add 7 to both sides

z = -1

13 = z + 18

=> subtract 18 from both sides

-5 = z

12 = t + 3

=> subtract 3 from both sides

9 = t