(3x+10)+(4x-15) what is x

The value of x is 5/7.

Step-by-step explanation:

In this case, the other side of the equation is 0.

3x + 10 + 4x - 15 = 0     Combine like terms

                7x - 5 = 0      Add 5 on both sides

                     7x = 5       Isolate the variable by dividing 7 on boths sides

                       x = 5/7

answer: the 4 kilogram bag

step-by-step explanation: this is because if you divide the number of kilograms into the total it will tell you how much each individual kilogram would be worth. 2 kilos is 7 and change 3 would be around 6 ish and the 4 kilo would be 4.6 and change and the 5 kilos would be like 4.88