Question

6 + 18r = 20r - 18 - 4r

Answer 1

6+18r=20r-18-4r
6+18r=18r-18
-6. -6
18r=18r-24
-18r. -18r
R=-24

Answer 2

r = -12

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

Explanation:

Step 1: Define

6 + 18r = 20r - 18 - 4r

Step 2: Solve for r

1. Combine like terms: 18r + 6 = 16r - 18
2. Subtract 16r on both sides: 2r + 6 = -18
3. Isolate r term: 2r = -24
4. Isolate r: r = -12