If $x = -2$ and $\frac{4}{x} + \frac{3}{y} = 1$,then $y = \dots$

The father's age is six times his son's age. Four years hence,the age of the father will be four times his son's age. The present ages,in years,of the son and the father are,respectively

Form the pair of linear equations for the following problem and find their solution by the substitution method.
The difference between two numbers is $26$ and one number is three times the other. Find the numbers.

Solve the following pair of linear equations by the substitution method:
$\frac{3x}{2} - \frac{5y}{3} = -2$
$\frac{x}{3} + \frac{y}{2} = \frac{13}{6}$

Solve the following pair of equations by substitution method:
$7x - 15y = 2$ $...(1)$
$x + 2y = 3$ $...(2)$

Solve the following pair of linear equations by the method of substitution: $8x - 3y = 1$ and $34x - 3y = 14$.