7x-4y = 26
5x-4y = 14
Subtract the bottom equation from the top squation remembering that a minus minus is equal to a plus therefore - 4y - - 4y = 0
2x = 12
Divide both sides by 2 to find the value of x:
x = 6
Substitute the value of x into the original equations to find the value of y:
Therefore: x = 6 and y = 4
45x20y5 / 5x4y = 45/5*x20-4*y5-1 = 9x16y4