Solve for x 7/(2x)+1/2=3

Subtract ${\displaystyle \frac{1}{2}}$ from both sides of the equation.

To write ${\displaystyle 3}$ as a fraction with a common denominator, multiply by ${\displaystyle \frac{2}{2}}$.

Combine ${\displaystyle 3}$ and ${\displaystyle \frac{2}{2}}$.

Combine the numerators over the common denominator.

Simplify the numerator.

Finding the LCD of a list of values is the same as finding the LCM of the denominators of those values.

Since ${\displaystyle 2x,2}$ contain both numbers and variables, there are two steps to find the LCM. Find LCM for the numeric part ${\displaystyle 2,2}$ then find LCM for the variable part ${\displaystyle x^1}$.

The LCM is the smallest positive number that all of the numbers divide into evenly.

Since ${\displaystyle 2}$ has no factors besides ${\displaystyle 1}$ and ${\displaystyle 2}$.

The LCM of ${\displaystyle 2,2}$ is the result of multiplying all prime factors the greatest number of times they occur in either number.

The factor for ${\displaystyle x^1}$ is ${\displaystyle x}$ itself.

The LCM of ${\displaystyle x^1}$ is the result of multiplying all prime factors the greatest number of times they occur in either term.

The LCM for ${\displaystyle 2x,2}$ is the numeric part ${\displaystyle 2}$ multiplied by the variable part.

Multiply each term in ${\displaystyle \frac{7}{2x}=\frac{5}{2}}$ by ${\displaystyle 2x}$.

Simplify the left side.

Simplify the right side.

Rewrite the equation as ${\displaystyle 5x=7}$.

Divide each term in ${\displaystyle 5x=7}$ by ${\displaystyle 5}$ and simplify.