Mathematics: Solve this system of linear equations! idk know these

Solve this system of linear equations! idk know these

Ответ:

hahalol123goaway

11.03.2022

x = 2, y = -2 → (2, -2)

Step-by-step explanation:

$\left\{\begin{array}{ccc}4x=6-y\\-13x=-28-y&\text{change the signs}\end{array}\right\\\\\underline{+\left\{\begin{array}{ccc}4x=6-y\\13x=28+y\end{array}\right}\qquad\text{add both sides of the equations}\\.\qquad17x=34\qquad\text{divide both sides by 17}\\.\qquad x=2\\\\\text{Put it to the first equation:}\\4(2)=6-y\\8=6-y\qquad\text{subtract 6 from both sides}\\2=-y\to y=-2$

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Ответ:

Itsyaaboij4663

18.04.2022

Mathematics

1. The largest number subtract the smallest number. So it would be 93-15=78

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Solve this system of linear equations! idk know these

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