Answer:
x = 5/2
General Formulas and Concepts:
<u>Pre-Algebra</u>
Order of Operations: BPEMDAS
- Brackets
- Parenthesis
- Exponents
- Multiplication
- Division
- Addition
- Subtraction
<u>Algebra I</u>
Step-by-step explanation:
<u>Step 1: Define</u>
12x - 30 = 2x - 5
<u>Step 2: Solve for </u><em><u>x</u></em>
- Subtract 2x on both sides: 10x - 30 = -5
- Add 30 to both sides: 10x = 25
- Divide 10 on both sides: x = 5/2

We know that

because of the Pythagorean trig identity

.
Answer:
10 / 12
simplified:
5/6
since 5 is a prime number, we can't simplify this ratio any further
Answer:
3/4 = z
Step-by-step explanation:
<u>Step 1: Convert words into an expression</u>
Divide 3 by 4, then subtract z from the result
3/4 - z
<u>Step 2: Solve for z</u>
3/4 - z + z = 0 + z
3/4 = z
Answer: 3/4 = z