# {y=15+3x,y=27-3x}

Systems of equations
{y=15+3x,y=27-3x}

2020-10-29
Let: y=15+3x
y=27-3x
Add each side to eliminate 3x and solve for y: 2y=42
y=21
Solve for x using (1)
21=15+3x
6=3x
2=x
So, the solution of the system is: (2,21)