<span>3x + 3y = –9
3x – 3y = 21
-----------------add
6x = 12
x = 2
</span>3x + 3y = –9
3(2) + 3y = -9
6 + 3y = -9
3y = -15
y = -5
x = 2 and y = -5
answer: <span>C. (2, –5)</span>
Anwser
D) 160
Step by step explanation
To find the area of a object you must multiply the length by the height in this case they gave you an equation instead of an exact height so the first thing you have to do is:
20m x 16m = 320m
But as you can see, all of the answers have an exponent of two meaning we would have to divide 320 by 2
320 ÷ 2 = 160
Brainliest?
F represents the distance, p represents the time, so the answer should be B
f=4.2p
Answer:
x < -17/2
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<u>
</u>
Step-by-step explanation:
<u>Step 1: Define</u>
<em>Identify</em>
-46 - 8x > 22
<u>Step 2: Solve for </u><em><u>x</u></em>
- [Addition Property of Equality] Add 46 on both sides: -8x > 68
- [Division Property of Equality] Divide -8 on both sides: x < -17/2
For 7x3 and 28x2
Are those x’s multiplication? Or just an X
