1/3(5x+3)-1/4(x+5)=4

2 min read Jun 16, 2024
1/3(5x+3)-1/4(x+5)=4

Solving the Equation: 1/3(5x+3) - 1/4(x+5) = 4

In this article, we will solve the equation 1/3(5x+3) - 1/4(x+5) = 4 step by step.

Step 1: Simplify the Equation

First, let's simplify the equation by evaluating the expressions inside the parentheses:

1/3(5x + 3) = (5x + 3)/3 -1/4(x + 5) = -(x + 5)/4

So, the equation becomes:

(5x + 3)/3 - (x + 5)/4 = 4

Step 2: Find a Common Denominator

To add or subtract fractions, we need to find a common denominator. The least common multiple (LCM) of 3 and 4 is 12. So, we'll multiply each fraction by the necessary factors to get a denominator of 12:

(5x + 3)/3 = (4(5x + 3))/12 -(x + 5)/4 = -(3(x + 5))/12

Now the equation becomes:

(4(5x + 3))/12 - (3(x + 5))/12 = 4

Step 3: Combine the Fractions

Combine the fractions by adding them:

(20x + 12 - 3x - 15)/12 = 4

Step 4: Simplify and Solve for x

Simplify the equation by combining like terms:

(17x - 3)/12 = 4

Multiply both sides by 12 to eliminate the fraction:

17x - 3 = 48

Add 3 to both sides:

17x = 51

Divide both sides by 17:

x = 51/17

x = 3

Conclusion

The solution to the equation 1/3(5x+3) - 1/4(x+5) = 4 is x = 3.

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