Question

please help me solve this by using the method off adding the 21/4 to each side. i dont not yet want to use the lcm method.

Answer 1

Given:

The equation

$-\frac{2}{3}x-\frac{21}{4}=\frac{27}{4}$

Required:

Solve the two-step equation.

Explanation:

The calculation is as:

$\begin{gathered} -\frac{2}{3}x-\frac{21}{4}=\frac{27}{4} \\ -\frac{2}{3}x=\frac{27}{4}+\frac{21}{4} \\ -\frac{2}{3}x=\frac{48}{4} \\ -\frac{2}{3}x=12 \\ -2x=36 \\ x=-18 \end{gathered}$

Answer:

The value of x = -18.