Divide both sides by 3 and your equation would now look like: x+2y= 4 Move the x to the other side 2y= -x+4 Seprate the y by dividing both sides by 2 y= x+2
1st month you spent $300. And the flight back is $200. 300+200=500. 1500-500=1000. Yoy have 1000 dollars to spend in 4 months. 1000/4=250, so each month you can spend $250.
x+2
