2x +n5y=12
x - 3y = -3: multiply by -2 giving -2x + 6y = 6, but -2x + 6y = 12 so we have a problem! Misprint?
2x+10=12 2x=2 x=1
2x-12
2x + 3y = 1 y = 1/3 - 2x/3
2x +n5y=12
x - 3y = -3: multiply by -2 giving -2x + 6y = 6, but -2x + 6y = 12 so we have a problem! Misprint?
x=5.54x+1= 2x+12-1 -14x=2x+11-2x -2x2x=11/2 /2x=5.5
2x+10=12 2x=2 x=1
2x-12
3x - 12 = -2x + 235x = 35 so x = 7
x = 7
2x + 1 = 13; 2x = 12; x = 6
12!
2x-3=4x+9 -2x-12=0 2x=-12 x=-6
2x + 3y = 1 y = 1/3 - 2x/3
so 3x + 2 = x + 12 ie 2x = 10 x =5