linear equation

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Across
  1. 3. the solution of 2x-3=7 is?
  2. 4. The age of the father is three times the age of the son. If the age of the son is 15 years old, then the age of the father is:
  3. 6. in an algebraic term 'ax' 'a' is called ------- of x
  4. 8. The perimeter of the rectangle is 20cm. If the length of the rectangle is 6cm, then its breadth will be-------- cm
  5. 9. the value of the variable in the equation which make LHS and RHS equal
Down
  1. 1. Aaron is 5 years younger than Ron. Four years later, Ron will be twice as old as Aaron. Find present age of ron
  2. 2. an algebraic equation with degree 1 is:
  3. 5. ------------means taking a term from one side of equation to the other side with sign changed
  4. 7. two equations that have the same solution
  5. 8. If 3/5 ᵗʰ of a number is 4 more than 1/2 the number, then what is the number?