FarenC263434 FarenC263434
  • 25-10-2022
  • Mathematics
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which expression could be substituted for x in the second equation to find the value of y?

which expression could be substituted for x in the second equation to find the value of y class=

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SaoriD662639 SaoriD662639
  • 25-10-2022

Substitution

We have the system of equations:

x + 2y = 20

2x - 3y = -1

To solve it with the substitution method, we need to solve the first equation for x and substitute it in the second equation.

Subtracting 2y to the first equation:

x = -2y + 20

This expression corresponds to choice B.

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