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Question: Math

Solve for both systems 3x - y = 20 and x + y = 4

In Math | Asked by AnneS2
Answers

x + y = 4

x -x+ y = 4-x

y = 4-x

3x - y = 20

3x - (4-x) = 20

3x-4+x=20

4x-4=20

4x-4+4=20=4

4x=24

4x/4=24/4

x=6

y = 4-x

y = 4-6=-2

CherieS | 236 days ago