Hello everyone can you help me with this problem? Please

1 answer:

4 0

Answer:

$a=10.5$

Step-by-step explanation:

$2.25(a+1.3)=20.7\\2.25a+2.925=20.7\\-2.925\\2.25a=23.625\\$

÷ $2.25$

$a=10.5$

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