en

English

Español

Português

Français

Deutsch

Italiano

Русский

中文(简体)

한국어

日本語

Tiếng Việt

עברית

العربية

Popular >

2.8x+4<=-x-2.1(-2x-4)

Solution

2.8 x + 4 \leq - x - 2.1 (- 2 x - 4)

Solution

x \geq - 11

+1

Interval Notation

[- 11, \infty)

Solution steps

2.8 x + 4 \leq - x - 2.1 (- 2 x - 4)

Multiply both sides by

10

28 x + 40 \leq - 10 x - 21 (- 2 x - 4)

Expand

- 21 (- 2 x - 4) : 42 x + 84

28 x + 40 \leq - 10 x + 42 x + 84

Add similar elements:

- 10 x + 42 x = 32 x

28 x + 40 \leq 32 x + 84

Move

40

to the right side

28 x \leq 32 x + 44

Move

32 x

to the left side

- 4 x \leq 44

Multiply both sides by

- 1

4 x \geq - 44

Divide both sides by

4

x \geq - 11

Popular Examples

\frac{b}{5} - 4 = 0

8 n^{2} + 6 n = - 5

x - 4 (- x + 5) = 10

2 x = 50

9 x + 2 = 6

Frequently Asked Questions (FAQ)

What is 2.8x+4<=-x-2.1(-2x-4) ?
The solution to 2.8x+4<=-x-2.1(-2x-4) is x>=-11