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Use the substitution method to solve the system of equations. Choose the correct ordered pair. 3x - y = 7 2x - 2y = 2 A. (2,-2) B. (2,2) C. (3,-1) D. (3,2)

Use the substitution method to solve the system of equations. Choose the correct ordered pair. 3x - y = 7 2x - 2y = 2 A. (2,-2) B. (2,2) C. (3,-1) D. (3,2)
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1 vote
Use the substitution method to solve the system of equations. Choose the

correct ordered pair.
3x - y = 7
2x - 2y = 2
A. (2,-2)
B. (2,2)
C. (3,-1)
D. (3,2)

asked
User Pinchus
by
7.8k points

1 Answer

3 votes
3x - y = 7
-> y = 3x - 7
2x - 2y = 2
Use the substitution method
2x - 2 ( 3x - 7 )=2
2x - 6x + 14 =2
-4x = 2-14
X = -12/-4
X = 3
Sub x = 3 into the eq y= 3x - 7
Y= 3*3-7
Y = 2 so the answer is D
answered
User Ahmed Balti
by
8.2k points
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