Explanation:
what do we need to do ?
just calculate the value of the expression when using the given values for the variables ?
what's the problem ? this is just basic calculation.
2×(-3×2 - 6) - 7×9 = 2×(-6 - 6) - 63 = 2×-12 - 63 =
= -24 - 63 = -87
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