 |
|---|
| PAGE: 264 | SET: Exercises | PROBLEM: 22 |
The equations are 
.
Equation (1)
Equation (2)
Solve the first equation 
.
According to addition property of equality: Add 3y to each side.
(Apply additive identity property: 
)
(Apply additive inverse property: 
)
(Apply additive identity property: 
)
Substitute 
in equation (2).
(Multiply: 
)
(Add: 
) 
According to division property of equality: Divide each side by 10.
(Cancel common terms)
(Divide: 
)
Substitute 
in equation .
(Multiply: 
)
The 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
  
|