2*2-3*7-90

To solve the expression \(2 * 2 - 3 * 7 - 90\), follow the order of operations (PEMDAS/BODMAS):

1. First, calculate the multiplications:

   • \(2 * 2 = 4\)
   • \(3 * 7 = 21\)

2. Now substitute these values back into the expression: \[ 4 - 21 - 90 \]

3. Next, perform the subtractions from left to right:

   • \(4 - 21 = -17\)
   • \(-17 - 90 = -107\)

Thus, the final result is \(-107\).