3x - 5y = 17 y = -7 Solve by substitution.
1 answer:
Substitute the value of y given by the second equation into the first.
.. 3x -5(-7) = 17
.. 3x +35 = 17
.. 3x = -18
.. x = -6
The solution is (x, y) = (-6, -7).
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To figure it out, cross multiply:
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Step-by-step explanation:
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