chisomdi
chisomdi chisomdi
  • 24-02-2022
  • Mathematics
contestada

Which is the best first step and explanation for solving this system of equation?

Which is the best first step and explanation for solving this system of equation class=

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devishri1977
devishri1977 devishri1977
  • 28-02-2022

Answer:

Subtract the first equation from the second equation.

Step-by-step explanation:

Subtract the first equation from the second equation.

If we do so, 'x' will be eliminated and we will get the value of y

3x + 4y = 12 --------------(I)

3x = 2y - 8 -------------(II)

3x + 4y - 3x = 12 - (2y - 8)

3x - 3x +4y = 12 -2y +8

             4y = 12 + 8 - 2y

      4y +2y = 20

           6y = 20

             y = 20/6

             y = 10/3

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