Form the pair of linear equations for the following problems and find their solution by substitution method.
The larger of two supplementary angles exceeds the smaller by 18 degrees. Find them.

form the pair of linear equations for the foIlowing problems and find their solution by substitution method: The larger of two supplementary angles exceeds the smaller by 18 degrees, Find them

Form the pair of linear equations in the following problems and find their solution by substitution method : A’s present age is to B’s present age is 7 : 9. Twelve years ago, their ages were in the ratio 3:5. When would the ratio of their ages be 6 : 7 ?

Form the pair of linear equations in the following problems and find their solution by substitution method : Ten years ago, father was twelve times as old as his son and ten years hence he will be twice as old as his son will be. Find their present ages.

Form the pair of linear equations for the foIlowing problems and find there solution by substitution method: The coach of a cricket team buys 7 bats and 6 balls for Rs 3800, Later, she buys 3 bats and 5 balls for Rs 1750. Find the cost of each bat and each ball.

Form the pair of linear equations in the following problems and find their solution by substitution method : Find the fraction which becomes to 2/3 when the numerator is increased by 2 and equal to 4/7 when the denominator is increased by 4 .