Lindsay882 Lindsay882

20-01-2018
Mathematics

contestada

Solve.

{y=3x−7
{15x−5y=14

Use the substitution method.

The solution is (15, 5).

The solution is (0, 7).

There is no solution.

There are an infinite number of solutions.

Respuesta :

gustanika gustanika

20-01-2018

Try to subtitute y with 3x - 7
15x - 5y = 14
15x - 5(3x - 7) = 14
15x - 15x + 35 = 14
35 ≠ 14
The equation system doesn't have any solution

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