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Zolol [24]
3 years ago
11

Solve the system by substitution. y = 6x – 20 y = -4x ​

Mathematics
1 answer:
ValentinkaMS [17]3 years ago
8 0

Answer:

(2, -8)

Step-by-step explanation:

y=6x-20

y=-4x

since the bottom equation shows us that y=-4x, we can substitute 4x in place of y in the first equation and solve:

-4x=6x-20

-10x=-20

x=2

since the bottom equation shows y=-4x, and we already know that x=2:

y=-4(2)

y=-8

(2, -8)

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2/3
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