Solution of a Linear Equation

Write the following as an equation in two variable :

y = 3

Express the following linear equations in the form ax + by + c = 0 and indicate the values of
a, b and c in each case:

`x - y/2- 5 = 0`

A lending library has a fixed charge for the first three days and an additional charge for each
day thereafter. Aarushi paid Rs 27 for a book kept for seven days. If fixed charges are Rs 𝑥
and per day charges are Rs y. Write the linear equation representing the above information.

If x = −1, y = 2 is a solution of the equation 3x + 4y = k, find the value of k.

A three-wheeler scooter charges Rs 15 for first kilometer and Rs 8 each for every subsequent
kilometer. For a distance of x km, an amount of Rs y is paid. Write the linear equation
representing the above information.

Write the following as an equation in two variable : 

5x = `7/2`

Write two solutions of the form x = 0, y = a and x = b, y = 0 for the following equation :

−4x + 3y = 12

Write two solutions of the following equation :

x = 6y