What is the answer to 0.7+0.2(10x+4)=3x+3.5+4x ?

The answer to 0.7+0.2(10x+4)=3x+3.5+4x is x=-2/5

English

Español

Português

Français

Deutsch

Italiano

Русский

中文(简体)

한국어

日本語

Tiếng Việt

עברית

العربية

Popular >

0.7+0.2(10x+4)=3x+3.5+4x

0.7 + 0.2 (10 x + 4) = 3 x + 3.5 + 4 x

x = - \frac{2}{5}

Decimal Notation

x = - 0.4

Solution steps

0.7 + 0.2 (10 x + 4) = 3 x + 3.5 + 4 x

Group like terms

0.7 + 0.2 (10 x + 4) = 3 x + 4 x + 3.5

Add similar elements:

3 x + 4 x = 7 x

0.7 + 0.2 (10 x + 4) = 7 x + 3.5

Multiply both sides by

10

7 + 2 (10 x + 4) = 70 x + 35

Expand

7 + 2 (10 x + 4) : 20 x + 15

20 x + 15 = 70 x + 35

Move

15

to the right side

20 x = 70 x + 20

Move

70 x

to the left side

- 50 x = 20

Divide both sides by

- 50

x = - \frac{2}{5}

4 x - 7 = 7 x - 61

x, 12 x + 4 y = 8

3 - x = x - 3

5 n - 3 = 3 n + 1

x, - 5 - y = - 3 x

What is the answer to 0.7+0.2(10x+4)=3x+3.5+4x ?
The answer to 0.7+0.2(10x+4)=3x+3.5+4x is x=-2/5
Solve for x: 0.7+0.2(10x+4)=3x+3.5+4x
The solution is x=-2/5