Question

$( - 7) ^{x \: + 2} \times ( - 7) ^{5 } = ( - 7) ^{10}$
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Answer 1

Answer:

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-7x + 2×7 (5) = -7 (10)

-7x + 2 × 35 = -70

-7x + 70 = -70

-7x = -140

x = 20