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41 votes
41 votes
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-example-1
User Ke
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1 Answer

6 votes
6 votes

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.

User Chebz
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