Solve the Fraction Equation: Find X in (x+2)/3 = 4/5

Question

Solve for X:

x+23=45 \frac{x+2}{3}=\frac{4}{5}

Video Solution

Solution Steps

00:08 Let's solve the problem.
00:11 Our goal is to find the value of X.
00:15 First, we multiply by both denominators. This helps remove any fractions.
00:25 Next, we open the parentheses and multiply each term carefully.
00:36 Now, let's rearrange the equation to have X on just one side.
00:50 Finally, we isolate X to find its value.
00:54 And that's how we solve this problem!

Step-by-Step Solution

To solve the equation x+23=45 \frac{x+2}{3}=\frac{4}{5} , we can follow the method of cross-multiplication:

  • Step 1: Cross-multiply to eliminate the fractions, giving us:

(x+2)5=43(x + 2) \cdot 5 = 4 \cdot 3

  • Step 2: Simplify both sides of the equation:

5(x+2)=125(x + 2) = 12

  • Step 3: Distribute the 5 on the left side:

5x+10=125x + 10 = 12

  • Step 4: Subtract 10 from both sides to isolate the term with x x :

5x=25x = 2

  • Step 5: Divide both sides by 5 to solve for x x :

x=25x = \frac{2}{5}

Therefore, the solution to the equation is 25 \frac{2}{5} .

Answer

25 \frac{2}{5}