Step-by-step explanation:
7x + 5y=1:
1. If x = -2 and y = 3 then the equation would be 7(-2)+5(3)
2. 7(-2)=-14 and 5(3)=15
3. -14+15=1
3x+2y=0:
1. If x = -3 and y = 4.5 then the equation would be 3(-3)+2(4.5)
2. 3(-3)=-9 and 2(4.5)=9
3. -9+9=0
Hope this helped! xx
