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  • 15-09-2017
  • Mathematics
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how to solve equation and justify for -30=-6(r+7)

Respuesta :

Anjixo Anjixo
  • 15-09-2017
Step 1: -30=-6(r+7)
Step 2: -30=-6r+42
Step 3: 6r=42+30
Step 4: 6r= 72
Step 5: r=12


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