For the following system, use the second equation to make a substitution for x in the first equation.
3x + 2y = 7

x - y + 3 = 0

What is the resulting equation?

3y - 3 + 2y = 7
3(y - 3) + 2y = 7
3x - y - 3 + 2y = 7

Find the value of the variable and the length of each secant segment.

The length of a rectangle is x times the square root of 100. the width is one-half y more than three-halves x. given that the area of the rectangle is 125 cm2, which equation could represent the rectangle in terms of x and y? a) 5xy − 15x = 125 b) 5xy + 15x = 125 c) 15x2 − 5xy = 125 d) 15x2 + 5xy = 125

Which of these tools or constructions is used to inscribe a hexagon inside a circle?