iguskamary iguskamary

14-03-2021
Mathematics

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Julie has 3 boxes of pens.
The diagram shows expressions for the number of pens in each box.
Look at these equations,
a = b + 9
b = c-2
Write an equation to show the relationship between a and c.

Respuesta :

johnson10290 johnson10290

14-03-2021

Answer:

a = c + 7

Step-by-step explanation:

just plug in (c - 2) for b in a = b + 9

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