Math Problem Statement

solve for x, 2/3(x+2)-(x+4)=3x+2

Solution

Let's solve the equation step by step:

23(x+2)(x+4)=3x+2\frac{2}{3}(x + 2) - (x + 4) = 3x + 2

Step 1: Distribute 23\frac{2}{3} over (x+2)(x + 2)

23(x+2)=23x+43\frac{2}{3}(x + 2) = \frac{2}{3}x + \frac{4}{3} Now, the equation becomes: 23x+43(x+4)=3x+2\frac{2}{3}x + \frac{4}{3} - (x + 4) = 3x + 2

Step 2: Distribute the negative sign through (x+4)(x + 4)

23x+43x4=3x+2\frac{2}{3}x + \frac{4}{3} - x - 4 = 3x + 2

Step 3: Combine like terms on the left-hand side

(23xx)+(434)=3x+2\left(\frac{2}{3}x - x\right) + \left(\frac{4}{3} - 4\right) = 3x + 2

To simplify 23xx\frac{2}{3}x - x, rewrite xx as 33x\frac{3}{3}x: 23x33x=13x\frac{2}{3}x - \frac{3}{3}x = -\frac{1}{3}x Now simplify the constants: 434=43123=83\frac{4}{3} - 4 = \frac{4}{3} - \frac{12}{3} = -\frac{8}{3} The equation is now: 13x83=3x+2-\frac{1}{3}x - \frac{8}{3} = 3x + 2

Step 4: Eliminate fractions by multiplying the entire equation by 3

3(13x83)=3(3x+2)3\left(-\frac{1}{3}x - \frac{8}{3}\right) = 3(3x + 2) This gives: x8=9x+6-x - 8 = 9x + 6

Step 5: Move all terms involving xx to one side and constants to the other side

x9x=6+8-x - 9x = 6 + 8 Simplify: 10x=14-10x = 14

Step 6: Solve for xx

x=1410=75x = \frac{14}{-10} = -\frac{7}{5}

So, the solution is: x=75x = -\frac{7}{5}

Would you like further details or explanations on any step?

Here are 5 related questions for practice:

  1. Solve 45(x+3)(x+5)=2x+7\frac{4}{5}(x + 3) - (x + 5) = 2x + 7.
  2. Solve 34(x+1)2(x+3)=4x+1\frac{3}{4}(x + 1) - 2(x + 3) = 4x + 1.
  3. Solve 2(x+3)3(x+2)=4x+72(x + 3) - 3(x + 2) = 4x + 7.
  4. Solve 56(x+4)(x+5)=4x+3\frac{5}{6}(x + 4) - (x + 5) = 4x + 3.
  5. Solve 78(x+2)(x+7)=5x+9\frac{7}{8}(x + 2) - (x + 7) = 5x + 9.

Tip: To clear fractions in equations, multiply the entire equation by the least common denominator (LCD).

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Math Problem Analysis

Mathematical Concepts

Algebra
Linear Equations
Fractional Expressions
Distributive Property

Formulas

Distributive Property: a(b + c) = ab + ac
Fraction Simplification
Combining Like Terms

Theorems

Properties of Equality
Distributive Property

Suitable Grade Level

Grades 8-10