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HURRY PLEASE

Solve the following system by the substitution method. Show your work.

{2x−7y=12
−x+3.5y=−6

User Carleson
by
4.3k points

2 Answers

2 votes

Answer:

(6,0)

Explanation:

User MrRobboto
by
4.1k points
1 vote

Answer:

Infinite solutions

Explanation:

2x−7y=12 (1)

−x+3.5y=−6 (2)

(2) x = 3.5y + 6

(1) 2(3.5y+6) - 7y = 12

7y + 12 - 7y = 12

12 = 12 (a true statement)

Since the variable got eliminated and we got a true statement, the system has infinitely many solutions.

One of the solutions:

(6,0)

User Demasterpl
by
3.9k points