Answer:
(4, 5/3)
General Formulas and Concepts:
Pre-Algebra
Order of Operations: BPEMDAS
- Brackets
- Parenthesis
- Exponents
- Multiplication
- Division
- Addition
- Subtraction
Equality Properties
Algebra I
- Solving systems of equations using substitution/elimination
- Solving systems of equations by graphing
Step-by-step explanation:
Step 1: Define Systems
x + 3y = 9
2x - 3y = 3
Step 2: Solve for x
Elimination
- Combine equations: 3x = 12
- Divide 3 on both sides: x = 4
Step 3: Solve for y
- Define equation: x + 3y = 9
- Substitute in x: 4 + 3y = 9
- Isolate y term: 3y = 5
- Isolate y: y = 5/3
Step 4: Graph Systems
Check the solution set.
