d = 30/12 = 15/6 = 5/2 = 2 1/2
check 12*2 + 6 = 24+6 = 30 sure enough
The answer to 30=12d
30=12d, this means 30 is equal to 12*?
You have to find the missing variable, so d would equal 2.5, or 2 1/2
Divide both sides by the co-efficient.
12/12 leaves you with d.
30/12 leaves you with 2.5
Check your work.
simplify 6 12/18
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