4 years ago

Will give brainliest!

Mathematics

2 answers:

Darina [25.2K]4 years ago

8 0

The bottom left is right hope this helps

OlgaM077 [116]4 years ago

7 0

Since we substitute everything that b is equal to into the first equation (which is what we do) we see that 3a+(a-15)=225.

:)

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