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denis-greek [22]
2 years ago
14

Solve the system of equations by substitution. What is the solution for x? (1 point)

Mathematics
2 answers:
Cerrena [4.2K]2 years ago
8 0
                 2x + y = 1
          2x - 2x + y = 1 - 2x
                         y = 1 - 2x
                         y = -2x + 1
               4x + 2y = -1
    4x + 2(-2x + 1) = -1
4x + 2(-2x) + 2(1) = -1
          4x - 4x + 2 = -1
                         2 ≠ -1

The solution of the problem can't be a solution because they are both parallel lines, which means they have no solution.
Rudik [331]2 years ago
7 0

There is no x value, as there is no solution.

I hope this helps :))

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x_{2}=\frac{-b+\sqrt{b^2-4ac}}{2a} =\frac{8+\sqrt{ (-8)^2-4 \cdot 3\cdot 2}}{2 \cdot 3} = \frac{ 4+\sqrt{ 10 } }{3}



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