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Question
what value of c is a solution to this equation?
7c = -7
c = -1 c = 3
Step1: Isoler la variable \( c \)
Pour résoudre l'équation \( 7c = -7 \), on divise les deux côtés par 7 :
\( \frac{7c}{7} = \frac{-7}{7} \)
Simplification donne \( c = -1 \).
Step2: Vérifier les options
- Pour \( c = -1 \) : \( 7(-1) = -7 \), ce qui correspond à l'équation.
- Pour \( c = 3 \) : \( 7(3) = 21
eq -7 \), donc incorrect.
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c = -1