Question

Simplify the expression:
10s+–2s

Answer 1

`\huge\boxed{8s}`

Explanation:

Expression can be broken down into a couple of parts.

• A term (like 10s, or -2s)
• The variable (what the unknown value is being represented by, in this case, s)
• The coefficient (the number next to the variable, showing what to multiply the variable by - in this case, 10 and -2)

When we have multiple terms with the same variable, we can perform operations on them assuming they have the same variable - for example, 5x + 6x = 11x, as 5+6=11.

We can apply the same logic here, however, note that adding a negative is the same as subtracting a positive. For example, 5 + -2 is the same as 5-2.

`10 - 2 = 8`

Therefore, our final expression is
`8s`.

Hope this helped!

Answer 2

8s

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

Algebra I

• Terms

Explanation:

Step 1: Define

10s + -2s

Step 2: Simplify

1. Rewrite: 10s - 2s
2. Combine like terms: 8s