Which equations shows the substitution method being used to solve the system of linear equations?
x + y = 6
x = y + 5
a. x + y = y +5
b. (y + 5) + y =6
c. x + (y +5) = 6
d. x = (x - 6) + 5

Polygon mnopq is dilated by a scale factor of 0.8 with the origin as the center of dilation, resulting in the image m′n′o′p′q′. the coordinates of point m are (2, 4), and the coordinates of point n are (3, 5). the slope of is .

Find all solutions for 2y - 4x =2 y = 2x + 1 site: socratic.org

Elena is paid a constant rate for each hour she works. the table shows the amounts of money that elena earned for various amounts of time that she worked.