Question

Use the substitution method to solve the system of equations.

y=-8x HELP
4x - y = 3
A. (6. - 4
ОВ. (3. - 4
C.
D. (1-2)

Answer 1

D. (1/4, -2)

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

Equality Properties

Algebra I

• Solving systems of equations using substitution/elimination

Explanation:

Step 1: Define Systems

y = -8x

4x - y = 3

Step 2: Solve for x

Substitution

1. Substitute in y: 4x - (-8x) = 3
2. Simplify: 4x + 8x = 3
3. Combine like terms: 12x = 3
4. Isolate x: x = 3/12
5. Simplify: x = 1/4

Step 3: Solve for y

1. Define equation: y = -8x
2. Substitute in x: y = -8(1/4)
3. Multiply: y = -2