Substitution method :

Given that :

The equations are

$\"\"$ ---------->(1)

$\"\"$

Subtract 92 from each side

$\"\"$

Divide each side by 7

$\"\"$ ---------->(2)

Substitute the value $\"\"$ in (1)

$\"\"$

Apply L.C.M rule : $\"\"$

$\"\"$

Multiply 7 to each side

$\"\"$

Apply distributive property : $\"\"$

$\"\"$

Group like terms

$\"\"$ \ \

Divide each side by -47

$\"\"$

Substitute the value $\"\"$ in (2)

$\"\"$

The solution of the equations are $\"\"$ and $\"\"$ .