If you mean 3x+10 = 5x then the value of x works out as 5
"The sum of a number and three times another number is 18. find the numbers if their product is a maximum?"
Thirty decreased by three times a number is six less than three times the number. Find the number.
-3
7
Their sum is three times the middle number.
One.
divide by 3 then times by 4
Is this exactly how the problem was written?
-3
-3
3x= 5x-10 2x=10 x=5
4