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Y = 3x+8 5x + 2y =20 solving systems by substitution

User Akos
by
3.2k points

2 Answers

10 votes

Answer:

x=4/11

y=9 1/11

Explanation:

y = 3x+8

5x + 2y =20

5x + 2 (3x+8) =20 .. substitute y

5x + 6x +16 = 20

11x = 20-16 = 4

x = 4/11

Y = 3*4/11 + 8 = 1 1/11 + 8 = 9 1/11

User Gordon Wilson
by
3.2k points
14 votes

Answer:

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