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In Mathematics / Middle School | 2014-04-30

What is the solution to the equation?

\[ 5(8 + 7) = 5 \cdot x + 5 \cdot 7 \]

A. \( x = 1 \)

B. \( x = 5 \)

C. \( x = 7 \)

D. \( x = 8 \)

Asked by mjchey

Answer (2)

5 ( 8 + 7 ) = 5 ⋅ x + 5 ⋅ 7 x = 8 A n s w er : D 5 ⋅ x + 5 ⋅ 7 = 5 ​ ⋅ x + 5 ​ ⋅ 7 = 5 ​ ⋅ ( x + 7 ) = 5 ⋅ ( 8 + 7 ) ⟺ x = 8

Answered by Anonymous | 2024-06-10

The solution to the equation 5 ( 8 + 7 ) = 5 ⋅ x + 5 ⋅ 7 is x = 8 . Therefore, the correct answer is D. This was found by simplifying the equation step by step to isolate x .
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Answered by Anonymous | 2024-09-30

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