2xy, minus a minus is the same as plus.
Answer:
4x-y=18
Step-by-step explanation:Since x is on the right side of the equation, switch the sides so it is on the left side of the equation.
4
x
−
18
=
y
Move y to the left side of the equation because it contains a variable.
4
x
−
18
−
y
=
0
Move 18 to the right side of the equation because it does not contain a variable.
4
x
−
y
=
18
Answer:
20x - 8
Step-by-step explanation:
Since we have the length and height of the rectangle we just multiply each by 2. This is because the length is the same on both sides and the height is too. The equation would look like this:
(5x-4 + 5x -4) + (5x +5x) = 10x -8 + 10 x = 20x -8
I am not sure what the answer is
Answer:
x = 24
General Formulas and Concepts:
<u>Pre-Algebra</u>
Order of Operations: BPEMDAS
- Brackets
- Parenthesis
- Exponents
- Multiplication
- Division
- Addition
- Subtraction
Equality Properties
<u>Geometry</u>
- All angles in a triangle add up to 180°
Step-by-step explanation:
<u>Step 1: Set Up Equation</u>
3x + 2x + 60° = 180°
<u>Step 2: Solve for </u><em><u>x</u></em>
- Combine like terms: 5x + 60 = 180
- Isolate <em>x </em>term: 5x = 120
- Isolate <em>x</em>: x = 24