Given equations are,
\ ------------(1)
---------(2)
The first equation is already solved for y,
\Substitute for y in the second equation to find x.
(Second equation)
(Substitute
)
(Add 5 to each side)
(Apply additive inverse property:
)
(Apply additive identity property:
)
(Add:
)
(Divide each side by 3)
(Cancel common terms)
(Divide:
)
Check the solution by graphing.
\Draw a coordinate planes.
\We can observe above graph,
\The graphs appear to intersect at .
The system has one solution.
The solution is .