19) Which system of equations is equivalent to the system of equations shown? x - 2y = 4 3x + y = 9 A) 4x + y = 13 and 2x + 4y = -8 B) 4x - y = 13 and 2x + 4y = 8 C) 4x + y = 13 and 2x - 4y = -8 D) 4x - y = 13 and 2x - 4y = 8 Explanation: 4x - y = 13 and 2x - 4y = 8 When given a system of two equations in two variables, replacing one equation ... Solving Systems of Equations by Substitution (2 Terms) Directions: Find each solution (solve for both x and y) then write as an ordered pair. 5. y = 6x – 20 6. y = 3x + 6 5x – y = 17 4x – 2y = -4 Solution: _____ Solution: _____ 7. y = x – 1 8. 3x – y = 4 x + y = 3 2x – 3y = -9

Linear system Solve this linear system (two linear equations with two unknowns): x+y =36 19x+22y=720; Two equations Solve equations (use adding and subtracting of linear equations): -4x+11y=5 6x-11y=-5; Linear system Solve a set of two equations of two unknowns: 1.5x+1.2y=0.6 0.8x-0.2y=2; Non linear eqs

## Wasmo wacan

Matplotlib contour colorbar limits

Moral diplomacy examples