X + y = 3 -5x - 4y = 12. Solve each system of linear equations by substitution.

Without graphing the linear functions, find the coordinates of the point of intersection of their graphs: y=3x−11 and y=4

The polygon tool to draw a rectangle with a length of 5 units and a height of 3 units. one of the sides of the rectangle falls on line ab , and the rectangle has a vertex of a. each segment on the grid represents 1 unit.

Can someone me with my hwplz(only the circled ones)