First multiply 3 x 17.50 = 52.50 divide 17.50 in half = 8.75 add those together 61.25 1 gallon 19.00 ( add the previous total ) 80.25 3 divided 4 x 19 = 14.25 add those together and your total answer is 94.5
now: x + (x +2) = 9090 or 2x + 2 = 9090 Solving this equation: 2x + 2 = 9090 subtract 2 from both sides 2x = 9088 divide both sides by 2 x = 4544 that means x + 2 = 4546
