Answer:
um what?
Step-by-step explanation:
I don't understand this
At least about 20 points it can depend on the class but not really.
4x + 6 = 18
-6 is solution ?
4 * (-6) + 6 = 18 ?
-24 + 6 = - 18
so not the solution
3 is solution ?
4 * 3 + 6 = 18 ?
4 * 3 + 6 = 12 + 6 = 18
YES
According to logarithmic properties.... The right hand side can be written as
log base 7 (180/3).....which is log base 7 60
So according to the question cancel out the log base 7 from both sides....
Then we get 8r + 20 = 60
That is 8r = 40..
That is r = 5......
Therefore the value of r is 5