Solve the system of equations. \begin{aligned} & -5y-10x = 45 &-3y+10x=-5 \end{aligned} −5y−10x=45 −3y+10x=−5

x = -2

y = -5

Step-by-step explanation:

You can use either substitution or elimination for this problem. I will be using elimination,

Step 1: Add the 2 equations together

-8y = 40

y = -5

Step 2: Plug y into an original equation to find x

-3 (-5) + 10x = -5

15 + 10x = -5

10x = -20

x = -2

And you have your final answers!

-7

step-by-step explanation:

x^2 + 18x + 74 = (x + 9)^2 - 81 + 74

= (x + 9)^2 - 7.

so q = -7.