What is 4(x+2y)-(x-y) ?

The solution to 4(x+2y)-(x-y) is 3x+9y

English

Español

Português

Français

Deutsch

Italiano

Русский

中文(简体)

한국어

日本語

Tiếng Việt

עברית

العربية

Popular >

simplify 4(x+2y)-(x-y)

simplify

4 (x + 2 y) - (x - y)

3 x + 9 y

Solution steps

4 (x + 2 y) - (x - y)

Apply the distributive law:

- (a - b) = - a + b

- (x - y) = - x + y

= 4 (x + 2 y) - x + y

Expand

4 (x + 2 y) : 4 x + 8 y

= 4 x + 8 y - x + y

Group like terms

= 4 x - x + 8 y + y

Add similar elements:

4 x - x = 3 x

= 3 x + 8 y + y

Add similar elements:

8 y + y = 9 y

= 3 x + 9 y

4 (2 + 5 i) - (3 - 4 i)

\frac{20}{3} \times 6

x^{2} - 2 6 x + 6

x^{- 4} \cdot (x^{- 4})^{4}

\frac{- 2 + - 12}{2}