7
x = -1.2, y = -3
2x + 3y = 9x = 3, y = 1 therefore 6 + 3 = 9
3/Y+7\Y=9 =>Y=10\9
24 = 3x + 9 -9 -9 Subtract 9 from each side15 = 3x/3 /3 Divide 3 from each side5 = x You are left with five equals X
3
10
-.6x+.5x+9=-3 -.1x=-12 x=120
4x+9 = 7x+3 4x-7x = 3-9 -3x = -6 x = 2
7
x = -1.2, y = -3
2x + 3y = 9x = 3, y = 1 therefore 6 + 3 = 9
3/Y+7\Y=9 =>Y=10\9
No! It equals 15, but 9-6=3.
24 = 3x + 9 -9 -9 Subtract 9 from each side15 = 3x/3 /3 Divide 3 from each side5 = x You are left with five equals X
9 + t/12 = -3 t/12 = -12 t = -144
If you know that n = 15, substitute 15 for n and solve: n + 3 - 9 15 + 3 - 9 9