Advanced Real world

Analyze the patterns and solve the equations!

1) Solve
x + 6 = 21. Find x.
2) Solve
9y = 27. Find y.
3) Solve
3y = 15. Find y.
4) Solve
x + 5 = 23. Find x.
5) Solve
4y = 40. Find y.
6) Solve
8y = 40. Find y.
7) Solve
x + 17 = 33. Find x.
8) Solve
x + 13 = 27. Find x.
9) Solve
4y = 20. Find y.
10) Solve
9y = 90. Find y.
11) Solve
4y = 32. Find y.
12) Solve
9y = 54. Find y.
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