lyniyakelly13869 lyniyakelly13869
  • 16-10-2020
  • Mathematics
contestada

Solve by substitution: y = 3x + 4 and y = -2x – 1.

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samkr14
samkr14 samkr14
  • 16-10-2020

Answer:

x = -1

y = 1

Step-by-step explanation:

y = 3x+4

y = -2x-1

-2x-1 = 3x+4

-5x - 1 = 4

-5x = 5

x = -1

Substitute this x value into 1 of the equations given in the problem:

y = 3(-1)+4

y = -3+4

y = 1

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nanabo1 nanabo1
  • 16-10-2020

Answer: the answer to x= -1 and y= 1

Answer Link

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