 |
|---|
| PAGE: 146 | SET: Exercises | PROBLEM: 2 |
The system of equations are 
and 
.
Equation (1)
Equation (2)
Since , substitute 
for y in the first equation.
Apply subtraction property of equality: Subtract 2x from each side.
Rearrange the terms using commutative property of addition: a + b = b + a.
(Apply additive inverse property: 
)
(Apply additive identity property: 
)
(Subtract: 
)
(Subtract 8 from each side)
(Apply additive inverse property: 
)
(Apply additive identity property: 
)
(Subtract: 
)
Apply division property of equality: Divide each side by negative 6.
(Cancel common terms)
(Divide: 
)
Now, find the y value by substituting 
in Equation 2.
(Multiply: 
)
(Add: 
)
The system of solution is 
.
|
"I want to tell you that our students did well on the math exam and showed a marked improvement that, in my estimation, reflected the professional development the faculty received from you. THANK YOU!!!" June Barnett |
|
"Your site is amazing! It helped me get through Algebra." Charles |
|
"My daughter uses it to supplement her Algebra 1 school work. She finds it very helpful." Dan Pease |
Simply chose a support option
  
|