You divide both sides by 3.5 to isolate the variable (x)
So then you get x=21.43 (rounded to the nearest hundreth.)
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35x + 115 = 360 35x = 360-115 35x = 245 x = 245/35 x = 7
x equals 9
2
42x+35x-35x=42x it's leave 85 so it's change into a negative 42x-85 is the answer
x2-35x+300 = 0 (x-15)(x-20) = 0 x = 15 or x = 20