What Is A + B • C?

[nycmathguy]

Review

 

[HallsofIvy]

This is more arithmetic than algebra!
A+ A+ A= 3A= 3 so A= 1.
B+ B+ A= 2B+ 1= 5. 2B= 5- 1= 4 so B= 2.
C+ C+ B= 2C+ 2= 8. 2C= 6 so C= 3.

NOW, what is A+ BC?

 

[nycmathguy]

This is more arithmetic than algebra!
A+ A+ A= 3A= 3 so A= 1.
B+ B+ A= 2B+ 1= 5. 2B= 5- 1= 4 so B= 2.
C+ C+ B= 2C+ 2= 8. 2C= 6 so C= 3.

NOW, what is A+ BC?

1 + 2(3) = 1 + 6 or 7.

Thanks.