if 3xa=3 times a then so the quantity (3xa+6) is divided by 3 so factor out the three and get 3(a+2) divide by three and get (a+2)+18 and the associative property of addition allows us to move the parenthasees to (a+2+18)=50 or a+20=50 subtract 20 from both sides and get a=30
or (3a+6)/3+18=50 3(a+2)/3+18=50 a+2+18=50 a+20=50 a=30
( 3 a + 6 ) : 3 + 18 = 50 ( 3 a + 6 ) : 3 = 50 − 18 ( 3 a + 6 ) : 3 = 32 3 a + 6 = 32 ∗ 3 3 a + 6 = 96 3 a = 96 − 6 3 a = 90 a = 90 : 3 a = 30
To solve the equation 3 3 x a + 6 + 18 = 50 , we simplify it to x a + 20 = 50 and isolate a as a = x 30 . The solution for a depends on the value of x .
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