Question

Solve system of equation by elimination:

-X + 4y = -8
-5x - 4y = -16
a
b
(4,1)
(-1,-4)
(4,-1)
(-4,1)
с
od

Answer 1

its b

Explanation:

Answer 2

a. (4, 1)

General Formulas and Concepts:

Pre-Algebra

Order of Operations: BPEMDAS

1. Brackets
2. Parenthesis
3. Exponents
4. Multiplication
5. Division
6. Addition
7. Subtraction

• Left to Right

Algebra I

• Solving systems of equations using substitution/elimination

Explanation:

Step 1: Define Systems

-x + 4y = -8

-5x - 4y = -16

Step 2: Solve for x

Elimination

1. Combine equations: -6x = -24
2. Isolate x: x = 4

Step 3: Solve for y

1. Define equation: -x + 4y = -8
2. Substitute in x: -4 + 4y = -8
3. Isolate y term: 4y = -4
4. Isolate y: y = -1