Question

Make x the subject of y = 3x - 2

You may use the flowchart to help you if you wish.
x 3
- 2 .
+​

Answer 1

x =
`(y+2)/(3)`

Explanation:

Given

y = 3x - 2 ( add 2 to both sides )

y + 2 = 3x ( isolate x by dividing both sides by 3 )

`(y+2)/(3)` = x

Answer 2

x = (y + 2)/3

General Formulas and Concepts:

Pre-Algebra

Order of Operations: BPEMDAS

1. Brackets
2. Parenthesis
3. Exponents
4. Multiplication
5. Division
6. Addition
7. Subtraction

• Left to Right

Algebra I

• Equality Properties

Explanation:

Step 1: Define

y = 3x - 2

Step 2: Rewrite

1. Add 2 to both sides: y + 2 = 3x
2. Divide 3 on both sides: (y + 2)/3 = x
3. Rewrite: x = (y + 2)/3