Answer:
(3, 5)
General Formulas and Concepts:
Pre-Algebra
Order of Operations: BPEMDAS
- Brackets
- Parenthesis
- Exponents
- Multiplication
- Division
- Addition
- Subtraction
Equality Properties
- Multiplication Property of Equality
- Division Property of Equality
- Addition Property of Equality
- Subtract Property of Equality
Algebra I
- Terms/Coefficients
- Coordinates (x, y)
- Solving systems of equations using substitution/elimination
Step-by-step explanation:
Step 1: Define Systems
y = 2x - 1
2x + 4y = 26
Step 2: Solve for x
Substitution
- Substitute in y: 2x + 4(2x - 1) = 26
- Distribute 4: 2x + 8x - 4 = 26
- Combine like terms: 10x - 4 = 26
- [Addition Property of Equality] Add 4 on both sides: 10x = 30
- [Division Property of Equality] Divide 10 on both sides: x = 3
Step 3: Solve for y
- Define equation: y = 2x - 1
- Substitute in x: y = 2(3) - 1
- Multiply: y = 6 - 1
- Subtract: y = 5