Translating a sentence into a multi step equation

Question

Twice the difference of a number and four is equal to three , use variable c for unknown number

Answer 1

Using the variable c to represent the unknown number, you can show "the difference of a number and four" as:

(c - 4)

Then "twice the difference" would be represented as:

2 (c - 4)

Next, "is equal to three" would be shown as:

2 (c - 4) = 3

This is the multi-step equation. You could solve it using the distributive property and inverses operations:

2 (c - 4) = 3

2c - 8 = 3

2c - 8 + 8 = 3 + 8

2c = 11

2c/2 = 11/2

c = 11/2 OR c = 5 and 1/2