Solve the equation.
30- (x + 5) = 7x-7
The solution is x =

What term best describes a line and a point that lie in the same plane? a. congruent b. coplanar c. collinear d. equal

The base of a triangle exceeds the height by 7 centimeters. if the area is 400 square centimeters, find the length of the base and the height of the triangle.

Write an algebraic expression to match each statement a. four less than 8 times a number b. twice the difference of a number and six c. nine from a number squared