Scratch

The differential equation contained a scratch that represented the derivative.

The polynomial equation had a scratch that represented a root of the equation.

The scratch represented an unknown variable in the equation.

The equation contained a scratch that needed to be isolated to solve the problem.

She noticed a scratch on the surface of the painting.

The scratch on the antique table was deep and noticeable.

The student had difficulty understanding the meaning of the scratch in the equation.

The window had a scratch from the tree branch.

The runners lined up at the scratch, waiting for the race to start.

The scratch was a variable that could be substituted with a numerical value.

She used a stylus to scratch the record and create a customized mix.

He examined the scratch on his expensive watch with disappointment.

The dermatologist advised him not to scratch his eczema-prone skin.

The sprinter was disqualified for starting ahead of the scratch, violating the race rules.

He used a wooden spatula to scratch his back, reaching the difficult spots.

The scratch was a parameter that affected the outcome of the experiment.

The function had a scratch that needed to be evaluated to determine its behavior.

The solution required finding the value of the scratch in the quadratic equation.

The algebraic expression included a scratch that represented the unknown quantity.