Question

4x+y=20
y=2x+2
solve using substitution

Answer 1

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Answer 2

x=3, y=8. (3, 8).

Explanation:

4x+y=20

y=2x+2

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4x+2x+2=20

6x+2=20

6x=20-2

6x=18

x=18/6

x=3

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y=2(3)+2=6+2=8