Respostas
respondido por:
1
Olá!
2.(x+3) = 12
2x + 6 = 12
x = (12 - 6) / 2
x = 6 / 2
x = 3
Prova real:
2.(3+3) = 12
2.(6) = 12
12 = 12
Espero ter ajudado, tenha um bom dia.
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giuliasousalima16:
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respondido por:
0
Oi, bom dia!
Resposta:
S = {3}.
Explicação passo-a-passo:
2 (x + 3) = 12 —> Equação do 1º grau.
2x + 6 = 12
2x = 12 – 6
2x = 6
x = 3. —> S = {3}.
Espero ter te ajudado e bons estudos para você! ;)
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