Answer:
Pic 1:
Pic 2:
Step-by-step explanation:
<u>Picture 1:</u>
<u />
First, add the 2x and x together for 3x
Then add 3 to both sides of the equation
Finally, divide each side by 3.
<u>Picture 2:</u>
<u /><u />
First, add 7x and x together for 8x
Then, minus 20 from both sides of the equation
Finally, divide each side by 8.
Answer:
5s² + 9
General Formulas and Concepts:
<u>Pre-Algebra</u>
Order of Operations: BPEMDAS
- Brackets
- Parenthesis
- Exponents
- Multiplication
- Division
- Addition
- Subtraction
<u>Algebra I</u>
- Terms/Coefficients/Degrees
Step-by-step explanation:
<u>Step 1: Define</u>
7s² + 9 + -2s²
<u>Step 2: Simplify</u>
- Rewrite: 7s² + 9 - 2s²
- Combine like terms (s²): 5s² + 9
Ok so you have your two equations:
(1) 2x + 3y = -11 (I am assuming you meant 2x + 3y instead of 2x + 3x at least?)
(2) x - y = 12
x = y + 12
If we substitute equation (2) into equation (1) we get:
2(y + 12) + 3y = -11
2y + 24 + 3y = -11
5y = -35, therefor y = -7
If y = -7, from equation (2) we get:
x = -7 + 12 = 5
Answer:
A) y/x
Step-by-step explanation:
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