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Margarita [4]
4 years ago
8

How do I do this problem? (5-8)

Mathematics
1 answer:
MissTica4 years ago
8 0

5. Answer: (-3, 2)

<u>Step-by-step explanation:</u>

In order to use the substitution method, you need to solve for one of the variables.

2x + 4y = 2

x + y = -1        →          y = -x - 1


2x + 4(-x - 1) = 2

2x - 4x - 4 = 2

     -2x - 4 = 2

      -2x     = 6

          x    = -3

                            y = -x - 1

                               = -(-3) - 1

                               = 3 - 1

                               = 2


Check:

2x + 4y = 2

2(-3) + 4(2) = 2

-6    +  8    = 2

            2    = 2  \checkmark

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ehidna [41]
Yes, yes it is; well done.
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What is the linear equation?

A linear equation is an algebraic equation of the form y=mx+b, where m is the slope and b is the y-intercept, and only a constant and a first-order (linear) term are present. The variables in the above equation are y and x, and it is occasionally referred to as a "linear equation of two variables."

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brainly.com/question/2030026

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