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What is the justification for step 3 in the solution process?

0.8a − 0.1a = a − 2.5
Step 1: 0.7a = a − 2.5
Step 2: -0.3a = -2.5
Step 3: a = 8.3

Respuesta :

mbogapaul2

Answer:

value of a=8.333

Step-by-step explanation:

we take equation two and hence we divide both side by -0.3

hence

-2.5/-0.3

=8.333

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