Answer:

Step-by-step explanation:

Adjust based on LCM (15):



Answer:
4x -12
Step-by-step explanation:
8 - 4(-x + 5)
Distribute
8 -4(-x) -4(5)
8 +4x -20
4x -12
Answer:
-35.7
Step-by-step explanation:
1. Plug in a and b to the equation:
7(-3.9)+2(-4.2)
2. Evaluate: -35.7
Answer:

General Formulas and Concepts:
<u>Pre-Algebra</u>
Order of Operations: BPEMDAS
- Brackets
- Parenthesis
- Exponents
- Multiplication
- Division
- Addition
- Subtraction
<u>Algebra I</u>
- Coordinates (x, y)
- Slope Formula:

Step-by-step explanation:
<u>Step 1: Define</u>
Point (9, 5)
Point (21, 1)
<u>Step 2: Solve for slope </u><em><u>m</u></em>
- Substitute in points [Slope Formula]:

- [Fraction] Subtract:

- [Fraction] Simplify:

Answer:
4300 
Step-by-step explanation:
evaluate each part
4 × 1000 = 4000
3 × 100 = 300
6 ×
=
×
= 
7 ×
= 
Thus
4000 + 300 +
+ 
= 4300 