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Solve this inequality: 4.2x + 5.6 < 7.2 – 8.3x

Step 1: Isolate the constant term on the left side of the
inequality by (
both sides of
the inequality.

Solve this inequality: 4.2x + 5.6 < 7.2 – 8.3x Step 1: Isolate the constant term-example-1

2 Answers

3 votes

subtracting 4.2x, subtracting 7.2, dividing by –12.5, x < 0.128.

Solution:

Given inequality:

4.2 x + 5.6 < 7.2 – 8.3 x

To solve this inequality:

Step 1:

Isolate the constant term on the left side of the inequality by subtracting 4.2x from both sides of the inequality.

4.2 x + 5.6 – 4.2 x < 7.2 – 8.3 x – 4.2 x

5.6 < 7.2 – 12.5 x

Step 2:

Isolate the variable term on the right side of the inequality by subtracting 7.2 from both sides of the inequality.

5.6 – 7.2 < 7.2 – 12.5 x – 7.2

–1.6 < – 12.5 x

Step 3:

Create a variable coefficient of 1 by dividing by –12.5 on both sides of the inequality.

0.128 > x

Step 4:

The solution set is x < 0.128.

User Putnik
by
8.0k points
2 votes

subtracting 4.2x, subtracting 7.2, dividing by –12.5, x < 0.128.

Solution:

Given inequality:

4.2 x + 5.6 < 7.2 – 8.3 x

To solve this inequality:

Step 1:

Isolate the constant term on the left side of the inequality by subtracting 4.2x from both sides of the inequality.

4.2 x + 5.6 – 4.2 x < 7.2 – 8.3 x – 4.2 x

5.6 < 7.2 – 12.5 x

Step 2:

Isolate the variable term on the right side of the inequality by subtracting 7.2 from both sides of the inequality.

5.6 – 7.2 < 7.2 – 12.5 x – 7.2

–1.6 < – 12.5 x

Step 3:

Create a variable coefficient of 1 by dividing by –12.5 on both sides of the inequality.


$(-1.6)/(-12.5) <(-12.5)/(-12.5)x

0.128 > x

Step 4:

The solution set is x < 0.128.

User Jboucly
by
8.0k points

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