What is the answer to 2L+2(L-2.5)=78 ?

The answer to 2L+2(L-2.5)=78 is L= 83/4

English

Español

Português

Français

Deutsch

Italiano

Русский

中文(简体)

한국어

日本語

Tiếng Việt

עברית

العربية

Popular >

2L+2(L-2.5)=78

2 L + 2 (L - 2.5) = 78

L = \frac{83}{4}

Decimal Notation

L = 20.75

Solution steps

2 L + 2 (L - 2.5) = 78

Expand

2 (L - 2.5) : 2 L - 5

2 L + 2 L - 5 = 78

Add similar elements:

2 L + 2 L = 4 L

4 L - 5 = 78

Move

5

to the right side

4 L = 83

Divide both sides by

4

L = \frac{83}{4}

x, x - 5 y = - 15

\frac{x - 3}{2} = 5

3 a - 3 = 114

8 + 2 x - 5 = 3 x + 22

5 \frac{1}{2} x + \frac{2}{3} x = 37