The equations are and .

          ---------------------> (Equation 1)

          ---------------------> (Equation 2)

The first equation is .

Apply addition property of equality: If a = b then a + c = b + c.

                 (Add 7y to each side)

                                (Apply additive inverse property: )

Apply division property of equality: If a = b then .

                            (Divide each side by 3)

                                 (Cancel common terms)

To substitute for x in second equation.

                (Apply standard division form: )

                  (Divide: )

Distribute terms using distributive property: .

                      (Multiply: )

                 (LCM of 3, 1 is 3)

                              (Add: 14y + 21y = 35y)

Apply subtraction property of equality: If a = b then a c = b c.

                  (Subtract 4 from each side)

Apply commutative property of addition: .

                                  (Apply additive inverse property: )

Apply multiplication property of equality: If a = b then .

                        (Multiply each side by 3)

                              (Zero product property: )

                                      (Cancel common terms)

Apply division property of equality: If a = b then .

                               (Divide each side by 35)

                                      (Cancel common terms)

                                           (Simplify)

To substitute in .

                          (Zero product property: )

The coordinate is (2, 0).

The solution of the point is (2, 0).