Subtracting a negative number has the same effect as adding a positive number. In this instance, -9 - (-2) = -9 + 2 = -7.
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Y+7=9 equals 2+7=9.
9
It is: -2+9 = 7
-2 - 9 + (-7) = -2 - 9 - 7 = -11 - 7 = = -18 the answer to this is (-18)
Answer: 144Logic: Product of first number and sum of two numbers2+3 =10; 2*(2+3)7+2=63; 7*(7+2).....9+7=? 9*(9+7)= 9*16 = 144