Question

Please help me its solving system by substitution

Answer 1

y = x + 5

2x + y = 2

2x + x + 5 = 2

3x + 5 = 2

3x = -3

x = -1

y = -1 + 5

y = 4

so x = -1 and y = 4

Answer 2

(1, 4)

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

• Multiplication Property of Equality
• Division Property of Equality
• Addition Property of Equality
• Subtract Property of Equality

Algebra I

• Solving systems of equations using substitution/elimination
• Terms/Coefficients

Explanation:

Step 1: Define Systems

y = x + 5

2x + y = 2

Step 2: Solve for x

Substitution

1. Substitute in x: 2x + x + 5 = 2
2. Combine like terms: 3x + 5 = 2
3. Isolate x term: 3x = -3
4. Isolate x: x = -1

Step 3: Solve for y

1. Define equation: y = x + 5
2. Substitute in x: y = -1 + 5
3. Add: y = 4