docpearson98 docpearson98
  • 30-03-2020
  • Mathematics
contestada

9(30 + a) = 99 find a

Respuesta :

xzoria123
xzoria123 xzoria123
  • 30-03-2020

Answer:

-19

Step-by-step explanation:

1. multiply 9 and 30 to get 270

2. multiply 9 and a to get 9a

3. your equation would look like this 270+9a = 99

4. then subtract 270 from both sides to get -171

5. the equation looks like this 9a = -171

6. then divide 9 from both sides

7. the answer is a = -19

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