G = how many contests that Gertrude won
e = how many contests Elena won
Gertrude 4 more times than Elena
g = e + 4
They won a total of 18 contests
g + e = 18
Answer:

General Formulas and Concepts:
<u>Pre-Algebra</u>
Order of Operations: BPEMDAS
- Brackets
- Parenthesis
- Exponents
- Multiplication
- Division
- Addition
- Subtraction
Equality Properties
- Multiplication Property of Equality
- Division Property of Equality
- Addition Property of Equality
- Subtraction Property of Equality
Step-by-step explanation:
<u>Step 1: Define</u>
<u />
<u />
<u />
<u>Step 2: Solve for </u><em><u>x</u></em>
- [Subtraction Property of Equality] Isolate <em>x</em> term:

- [Division Property of Equality] Isolate <em>x</em>:

Here we see that any value <em>x</em> smaller than or equal to 12 would work as a solution to the inequality.
Answer:
the answer is the choice C. because
27/9 equals 3 . the answer is 3 .
Answer:
x=6 to that's my answer
Step-by-step explanation:
2x+3=15
lol sorry I’m late it’s 21 though