Can someone explain step by step process

Step-by-step explanation:

3*7*10*10*10*10*10*10*10

(5+2=7)(since is multiplication you add)

21*=B

2*10*10*10*10*10

4*10*10

(5-2=3)(since is division you subtract)

0.5*=c

logv3(x+2)=1

rewrite in exponential form:

logb(x) = y is equal to b^y =x

b = 3, y = 1

now solve for x:

3^1 = x+2)

x = 3-2

x = 1

see the picture for the graph.