The system of equations are and
.
Equation (1)
Equation (2)
Solve the first equation for c.
\Apply addition property of equality: Add 5d to each side.
\ (Apply additive inverse property:
)
(Apply additive identity property:
)
Substitute in
.
Distribute terms using distributive property: a( b + c ) = ab + ac.
\ (Multiply:
)
(Add:
)
(Add 48 to each side)
Rearrange the terms using commutative property of addition: a + b = b + a. \ \
\ (Apply additive inverse property:
)
(Apply additive identity property:
)
(Add:
)
Apply division property of equality: Divide each side by 17.
\ (Cancel common terms)
Now, find the c value by substituting in
.
(Multiply:
)
(Add:
)
The system of solution is .