The base is 5 because when you divide 31.5 by 6.3 it's 5
Hello! I tried and I only know a few. If you have parents at home, you might have to ask them. But this is all I can do...
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I'm not sure, but hope this helps!
X * y = -48
x + y = 8
y = -48/x
x -48/x = 8
x^2 - 48 = 8x
x^2 - 8x -48 = 0
x = 12
y = -4
Answer:
6r+7=13+7r
6r+7=7r+13
6r+7−7r=7r+13−7r
−r+7=13
−r+7−7=13−7
−r=6
=
r=−6
Step-by-step explanation:
:) This is the answer