Express the following statements as a linear equation in two variables.
The cost of a pencil is 2 and a ball point pen is 15. Sheela pays 100 for the pencils and pens she purchased.

Express the following statements as a linear equation in two variables. The sum of two numbers is 34.

Express the following statements as a linear equation in two variables. The sum of two numbers is 34.

Express the following statements as a linear equation in two variables. The cost of a ball pen is 5 less than half the cost of a fountain pen.

Express the following statements as a linear equation in two variables. Bhargavi got 10 more marks than double the marks of Sindhu.

Express the following statements as a linear equation in two variables. The sum of a two digit number and the number obtained by reversing the order of its digits is 121. If the digits in unit’s and ten’s place are ‘x’ and ‘y’ respectively.

Express the following statements as a linear equation in two variables. Yamini and Fatima of class IX together contributed 200/- towards the Prime Minister’s Relief Fund.

Solve the following simultaneous linear equations in two variables by the method of elimination : 2 x + 2 y = 10 ; 2 y − 3 x = − 5

Express the following linear equation in the form of ax+by+c=0 and indicate the values of a, b and c in each case. (i) 8x + 5y - 3 = 0 (ii) 28x - 35y = - 7 (iii) 93x = 12 - 15y (iv) 2x = - 5y (v) x/3+y/4=7 (vi) y=(-3)/2x (vii) 3x+5y=12

Take a graph paper, plot the point (2, 4), and draw a line passing through it.Now answer the following questions. How many linear equations in two variables exist for which (2, 4) is a solution?