3(4x +12)=180
12x + 36 =180
-36. -36
180-36= 144
12x = 144
——. ——-
12. 12
X = 12
Step-by-step explanation:
3x+18+2x-5= -2x+-2+10
combining like terms
3x+2x+2x=5-2+10-18
7x=-5
x=-5/7
The probability is 2/9 because there are 9 marbles and 2 marbles were pulled out. hope I helped XD
$16.80 / 4 gallons = $4.20 per gallon