View the step-by-step solution to:

Chapter 7 of the text: Section 7.1 and 7.2 Section 7. Exercise 22, 24, 36, 38, 42, 56, and 70 Section 7. Exercise 8, 12, 16, 22, 26, 36, and 44...

Chapter 7 of the text: Section 7.1 and 7.2

Section 7.1: Exercise 22, 24, 36, 38, 42, 56, and 70
Section 7.2: Exercise 8, 12, 16, 22, 26, 36, and 44

Section 7.1

The graphs of the following systems are given in (a) through
(d). Match each system with the correct graph.

22) 3x – 5y = -9
5x – 6y = -8

24) 4x + 5y = -2
4y – x = 11

Solve each system by substitution. Determine whether the
Equations are independent, dependent, or inconsistent.

36) y = -3x + 19
y = 2x – 1

38) y = -4x – 7
Y = 3x

42) y = x + 4
3y – 5x = 6

56) 2x – y = 4
2x – y = 3

Solve each system by the substitution method.

70) x + 3y = 2
-x + y = 1

Section 7.2

Solve each system by addition.

8) x + y = 7
x – y = 9

12) x – 2y = -1
-x + 5y = 4

16) 3x + 5y = -11
x – 2y = 11

22) 2x = 2 – y
3x + y = 11

Solve each system by the addition method. Determine whether
the equations are independent, dependent, or inconsistent.

26) x – y = 3
-6x + 6y = 17

Solve each system by the addition method. Equation evolving fractions or decimals.

36) 3/7x + 5/9y = 27
1/9x + 2/7y = 7

44) 3x – 2.5y = 7.125
2.5x – 3y = 7.3125







Sign up to view the entire interaction

Top Answer

Dear student, please... View the full answer

sol.docx

The graphs of the following systems are given in (a) through
(d). Match each system with the correct graph.
22) 3x – 5y = -9
5x – 6y = -8 From the graph, we can see that both lines intersect at...

Sign up to view the full answer

Why Join Course Hero?

Course Hero has all the homework and study help you need to succeed! We’ve got course-specific notes, study guides, and practice tests along with expert tutors.

-

Educational Resources
  • -

    Study Documents

    Find the best study resources around, tagged to your specific courses. Share your own to gain free Course Hero access.

    Browse Documents
  • -

    Question & Answers

    Get one-on-one homework help from our expert tutors—available online 24/7. Ask your own questions or browse existing Q&A threads. Satisfaction guaranteed!

    Ask a Question
Ask a homework question - tutors are online