Math
posted by Julie .
I am a parent of a 10 year old, 5th grader and my hubby and I just can't figure these out to help her. Anyone?? Thanks in advance.
27 = 8k divide k = ??
5a  3a = 18 a = ??
12r  4r = 48 r = ??
g = 7(103) g = ??
These are finding the unknown number in each equation.
Thanks so much

27 = 8k
Divide both sides of the equation by 8.
27/8 = k
3.375 = k
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5a  3a = 18
2a = 18
a = 9
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Can you do the rest yourself? We'll be glad to check your answers. 
12r4r=48r=

5a3a=18. What does a equal?