Solve for [tex]\( x \)[/tex].

[tex]\[
\frac{3}{5}(x-4) + \frac{6}{7} = \frac{1}{7}(x+2)
\][/tex]

[tex]\[ x = \square \][/tex] (Simplify your answer.)



Answer :

To solve the equation [tex]\(\frac{3}{5}(x-4)+\frac{6}{7}=\frac{1}{7}(x+2)\)[/tex], we can follow these steps:

1. Distribute and simplify both sides:
[tex]\[ \frac{3}{5}(x - 4) + \frac{6}{7} = \frac{1}{7}(x + 2) \][/tex]

Distribute [tex]\(\frac{3}{5}\)[/tex] on the left side:
[tex]\[ \frac{3}{5}x - \frac{3}{5} \cdot 4 + \frac{6}{7} = \frac{3}{5}x - \frac{12}{5} + \frac{6}{7} \][/tex]

Distribute [tex]\(\frac{1}{7}\)[/tex] on the right side:
[tex]\[ \frac{1}{7}x + \frac{1}{7} \cdot 2 = \frac{1}{7}x + \frac{2}{7} \][/tex]

Now we have:
[tex]\[ \frac{3}{5}x - \frac{12}{5} + \frac{6}{7} = \frac{1}{7}x + \frac{2}{7} \][/tex]

2. Combine like terms:
To simplify, it is beneficial to get rid of the fractions by finding a common denominator. The common denominator for 5 and 7 is 35.

Multiply through by 35:
[tex]\[ 35 \left( \frac{3}{5}x - \frac{12}{5} + \frac{6}{7} \right) = 35 \left( \frac{1}{7}x + \frac{2}{7} \right) \][/tex]

Simplifying each term:
[tex]\[ 35 \cdot \frac{3}{5}x = 21x, \quad 35 \cdot \frac{12}{5} = 84, \quad 35 \cdot \frac{6}{7} = 30 \][/tex]
[tex]\[ 35 \cdot \frac{1}{7}x = 5x, \quad 35 \cdot \frac{2}{7} = 10 \][/tex]

So, the equation becomes:
[tex]\[ 21x - 84 + 30 = 5x + 10 \][/tex]

3. Combine like terms and isolate [tex]\(x\)[/tex]:
Simplify the equation:
[tex]\[ 21x - 54 = 5x + 10 \][/tex]

Subtract [tex]\(5x\)[/tex] from both sides:
[tex]\[ 16x - 54 = 10 \][/tex]

Add 54 to both sides:
[tex]\[ 16x = 64 \][/tex]

4. Solve for [tex]\(x\)[/tex]:
Divide both sides by 16:
[tex]\[ x = \frac{64}{16} = 4 \][/tex]

Thus, the solution to the equation is:
[tex]\[ x = 4 \][/tex]