2 years ago

What is — 2х + y = 0 — 7х + Зу = 2 added together? HELPPP

Mathematics

1 answer:

Vikentia [17]2 years ago

7 0

Step-by-step explanation:

Because -2x+y=0 we can add the two equations together amd makw it equal to the 2.

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$\text{ Answer: There are }12\text{ gray keys.}\\\\\text{ there are }22\text{ black keys.}$

Explanation:

Since we have given that

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