Represent the following sentence as an algebraic expression, where “a number” is the letter x. 7 minus a number

The center of the circumscribed circle lies on line segment and the longest side of the triangle is equal to the of the circle.

Ineed no it anyone can see this

Which equation shows y= 3 4 x− 5 2 in standard form? a 4x−3y=10 b 3x−4y=10 c 3x−4y=−10 d 4x−3y=−10