30
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1500-x=1470
subtract 1500 from both sides
(1500-x)-1500=1470-1500
simplify
-x=-30
multiply both sides by -1
x=30 this is your answer!
12 equals 3x(4) equals 6x(2) equals (12)x1
49
3 times blank equals 18,000 = 54000
1470
Blank = 3