Answered

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Solve the system of equations by substitution. What is the solution for x? (1 point)
2x + y = 1
4x + 2y = -1

Sagot :

Panoyin
                 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.
cthompson4116

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

I hope this helps :))

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