What is the answer to 3x-12-9=2-x+5 ?

The answer to 3x-12-9=2-x+5 is x=7

English

Español

Português

Français

Deutsch

Italiano

Русский

中文(简体)

한국어

日本語

Tiếng Việt

עברית

العربية

Popular >

3x-12-9=2-x+5

3 x - 12 - 9 = 2 - x + 5

x = 7

Solution steps

3 x - 12 - 9 = 2 - x + 5

Subtract the numbers:

- 12 - 9 = - 21

3 x - 21 = 2 - x + 5

Group like terms

3 x - 21 = - x + 2 + 5

Add the numbers:

2 + 5 = 7

3 x - 21 = - x + 7

Move

21

to the right side

3 x = - x + 28

Move

x

to the left side

4 x = 28

Divide both sides by

4

x = 7

lo g_{4} (8) + lo g_{4} (5)

- 29 = 5 x + 6 - 12 x

x^{2} - x - 1

\frac{- 8}{- 4}

\frac{x ^{- 4}}{x ^{- 8}}