W+3= w+6 i need the correct step by step

Galen sold tickets of his church’s carnival for a total of $2,820. children’s tickets cost $3 each and adult tickets cost $5 each. the number of children’s tickets sold was 30 more than 3 times the number of adult tickets slod. how many children’s ticket and how many adult tickets did he sell?

Which value would be a solution for x in the inequality 47-4x< 7

Solve for x: 5/3 x = 20/21 it's fraction. remember to simplify your fraction