Answer:
18
Step-by-step explanation:
Let's solve your equation step-by-step.
Step 1: Add 5 to both sides.


Step 2: Solve Exponent to get.
d = −4.054522 or -4.05 hope this helps
Answer:
30
Step-by-step explanation:
45-15=30
21/1 divided by 7/4 = 21/1 x 4/7 = 12.
Hope this helped my guy.