Question

Resolva as seguintes equações, sendo U=Q

Answer 1

Olá!!  :)

$\sf ITEM \ (A): \\\\ x \ + \ 2 \ = \ -21 \\\\ x \ = \ - \ 21 \ - \ 2 \\\\ \boxed{ \sf x \ = \ -23} \\\\ \\\\ ITEM \ (B) : \\\\ \frac{x}{3} \ = \ -7 \\\\ x \ = \ (-7) \ . \ 3 \\\\ \boxed{ \sf x \ = \ -21} \\\\ \\\\ ITEM \ (C): \\\\ 5x \ = \ 125 \\\\ x \ = \ \frac{125}{5} \\\\ \boxed{ \sf x \ = \ 25 } \\\\ \\\\ ITEM \ (D): \\\\ 3x \ + \ 8 \ = \ -7 \\\\ 3x \ = \ -7 \ - \ 8 \\\\\ 3x \ = \ -15 \\\\ x \ = \ -\ \frac{15}{3} \\\\ \boxed{ \sf x \ = \ -5}$

Espero ter ajudado, bons estudos!!  :)

•   ∫∫   Ajuda fornecida por Kimberly Carlos    ∫∫