Question

Y = 2x – 4
y = -x + 5

Answer 1

(3, 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 = 2x - 4

y = -x + 5

Step 2: Solve for x

Substitution

1. Substitute in y: 2x - 4 = -x + 5
2. Add x to both sides: 3x - 4 = 5
3. Add 4 to both sides: 3x = 9
4. Isolate x: x = 3

Step 3: Solve for y

1. Define equation: y = -x + 5
2. Substitute in x: y = -3 + 5
3. Add: y = 2