Respuesta :
Answer:
x = 17
General Formulas and Concepts:
Pre-Algebra
Order of Operations: BPEMDAS
- Brackets
- Parenthesis
- Exponents
- Multiplication
- Division
- Addition
- Subtraction
- Left to Right
Distributive Property
Equality Properties
- Multiplication Property of Equality
- Division Property of Equality
- Addition Property of Equality
- Subtraction Property of Equality
Algebra I
- Terms/Coefficients
Step-by-step explanation:
Step 1: Define
x + 8 = 3(x - 7) - 5
Step 2: Solve for x
- Distribute 3: x + 8 = 3x - 21 - 5
- Combine like terms: x + 8 = 3x - 26
- [Subtraction Property of Equality] Subtract x on both sides: 8 = 2x - 26
- [Addition Property of Equality] Add 26 on both sides: 34 = 2x
- [Division Property of Equality] Divide 2 on both sides: 17 = x
- Rewrite/Rearrange: x = 17
Answer:
17
Step-by-step explanation:
X+8=3(x-7)-5
x+8=3x-21-5
x+8=3x-26
8=2x-26
34=2x