To solve this system of equations, you can use either the substitution method or the elimination method. Let's use the substitution method:
Step 1: Solve the first equation for y in terms of x:
y = (2/3)x + 6
Step 2: Substitute this expression for y into the second equation:
3y + 6x - 18 = 0
3((2/3)x + 6) + 6x - 18 = 0
2x + 18 + 6x - 18 = 0 (distribute 3 to (2/3)x and 6)
8x = 0
x = 0
Step 3: Substitute the value of x = 0 back into the first equation to solve for y:
y = (2/3)(0) + 6
y = 6
Therefore, the solution to the system of equations is x = 0 and y = 6.