Solve the system by substitution.
y, equals, 7, x, minus, 20
y=
7x−20
y, equals, 2, x
y=
2x
Since both equations are solved for y, we can set the two expressions for y equal to each other and solve for x:
7x - 20 = 2x
5x = 20
x = 4
Now that we have found x, we can substitute this value back into one of the original equations to find y:
y = 2(4)
y = 8
Therefore, the solution to the system of equations is x = 4 and y = 8.