The equations are
\ Equation (1)
Equation (2)
Multiply the equation (2) by 2
\ Equation (3)
\ \
Subtract the equation (3) and equation (1) to eliminate the m variable
\ (Add the corresponding columns)
(Divide each side by 8)
\
\
(Cancel common terms)
(Divide:
)
Substitute in equation (2).
(Multiply:
)
(Add 2 to each side)
(Apply Additive inverse property:
)
(Apply Additive identity property:
)
(Add:
)
(Divide each side by 5)
\
\
(Cancel common terms)
(Divide:
)
The solution is
The solution is .