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Solve the system of equations y=-5x x+3y=28 A. Infinate Solutions B. (-6, 30) C. (44, 39) D. (-2, 10) E. No solution​
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Solve the system of equations y=-5x x+3y=28

A. Infinate Solutions
B. (-6, 30)
C. (44, 39)
D. (-2, 10)
E. No solution​

User Siddardha Budige
by
6.2k points

2 Answers

5 votes
(-2,10) is the correct answer
User Demetri
by
5.1k points
2 votes
Use substitution
Plug in -5x for y in the second equation
x + 3(-5x) = 28
x - 15x = 28
-14x = 28, x = -2
Now plug in -2 for x in first equation
Y = -5(-2) = 10

Solution: D. (-2, 10)
User Antoine Lassauzay
by
6.1k points
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