Answer:
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Step-by-step explanation:
You can find the slope and y-intercept, and make an equation in slope- intercept form and them just plug in the other x values in the equation.
I believe you would solve for X like: 3x-10=2x-10.
The only math term I can think of is geometry and it means when a solid is cut through parallel to the base.
EDIT: After further research since it was all I could think of. This is the only math term for what you are looking for.