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# Solve system of equations by elimination or subsitution.?

5x+3y=-4

2x-4y=14

### 3 Answers

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- Anonymous1 decade agoFavorite Answer
Use substitution:

2x = 4y+14

x = 2y+7

5(2y+7) +3y= -4

10y + 35 + 3y = -4

13y = -39

y = -3

5x - 9 = -4

5x = 5

x = 1

Check:

2(1) - 4(-3) = 14

2 + 12 = 14

14 = 14

Answer = (1, -3)

Source(s): my brain - rwbblb46Lv 41 decade ago
2x - 4y = 14

x - 2y = 7

x = 2y + 7

5(2y + 7) + 3y = 4

13y = -31

y = -31/13 x =29/13

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