Math Problem Statement

3(x+5) < 2 (x+2)+8

Solution

Let's solve the inequality:

Given inequality: 3(x+5)<2(x+2)+83(x + 5) < 2(x + 2) + 8

Step 1: Expand both sides

On the left-hand side: 3(x+5)=3x+153(x + 5) = 3x + 15

On the right-hand side: 2(x+2)+8=2x+4+8=2x+122(x + 2) + 8 = 2x + 4 + 8 = 2x + 12

So the inequality becomes: 3x+15<2x+123x + 15 < 2x + 12

Step 2: Move the variables to one side

Subtract 2x2x from both sides: 3x2x+15<123x - 2x + 15 < 12 This simplifies to: x+15<12x + 15 < 12

Step 3: Solve for xx

Subtract 15 from both sides: x<1215x < 12 - 15 x<3x < -3

Final solution:

x<3x < -3

Let me know if you need more details or have any questions!


Here are 5 related questions for further practice:

  1. Solve 5(x+2)3(x+4)+75(x + 2) \geq 3(x + 4) + 7.
  2. Solve 4x7<2x+54x - 7 < 2x + 5.
  3. Solve the compound inequality 2x+1<5x+7<8x+122x + 1 < 5x + 7 < 8x + 12.
  4. Solve 7(x1)>4x+57(x - 1) > 4x + 5.
  5. Solve 6x+92(x+4)+136x + 9 \leq 2(x + 4) + 13.

Tip: Always simplify both sides of the inequality before moving variables and constants around.

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Math Problem Analysis

Mathematical Concepts

Algebra
Linear Inequalities

Formulas

Distributive Property
Linear Inequality Manipulation

Theorems

Transitive Property of Inequality

Suitable Grade Level

Grades 7-9