Final solution to the system of equations given below
x=-4
5x+4y=-10​

(-4, 5/2)

General Formulas and Concepts:

Pre-Algebra

Order of Operations: BPEMDAS

to Right  

Equality Properties

Multiplication Property of EqualityDivision Property of EqualityAddition Property of EqualitySubtraction Property of Equality

Algebra I

Coordinates (x, y)Solving systems of equations using substitution/elimination

Step-by-step explanation:

Step 1: Define Systems

x = -4

5x + 4y = -10

Step 2: Solve for y

Substitution

Substitute in x:                                                                                                5(-4) + 4y = -10Multiply:                                                                                                           -20 + 4y = -10[Addition Property of Equality] Add 20 on both sides:                               4y = 10[Division Property of Equality] Divide 4 on both sides:                                 y = 10/4Simplify:                                                                                                             y = 5/2

D.