Is (–8, –9) a solution to this system of inequalities?

x + y > –18

12x + 5y < 19

asked by guest
on Mar 29, 2025 at 7:05 pm



MathBot Answer:

True, (−8, −9)\left( -8, \ -9\right) is a solution of x+y>−18 and 12x+5y<19x + y > -18 \text{ and } 12 x + 5 y \lt 19.

x+y>−18−8−9>?−18−17>−18\begin{gathered}x + y > -18\\- 8 - 9 \stackrel{?}{\gt} -18\\-17 \gt -18\end{gathered}12x+5y<1912(−8)+5(−9)<?19−141<19\begin{gathered}12 x + 5 y \lt 19\\12 \left(-8\right) + 5 \left(-9\right) \stackrel{?}{\lt} 19\\-141 \lt 19\end{gathered}

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