Solve the system using substitution or elimination and describe your steps. Be sure to verify your solution. • x = y - 3 2x + y = 12

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Mathematics

14 August, 05:34

Solve the system using substitution or elimination and describe your steps. Be sure to verify your solution. • x = y - 3 2x + y = 12

+3

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Salvador Hoffman · Answer 1

x = y - 3

2x + y = 12

substitute x = y - 3 into 2x + y = 12

2x + y = 12

2 (y - 3) + y = 12

2y - 6 + y = 12

3y - 6 = 12

3y = 18

y = 6

substitute y = 6 into x = y - 3 to find x

x = y - 3

x = 6 - 3

x = 3

answer

x = 3 and y = 6