Answer:
The value of x is, 
Explanation:
Given: 
Distributive Property states that when a number is multiplied by the sum of two numbers, the first number can be distributed to both of those numbers and multiplied by each of them separately.
If 
Now, using distributive property on left hand side of the given expression as:
or 
Addition Property of equality state that we add the same number from both sides of an equation.
Add r to both sides of an equation:

Simplify:

Subtraction Property of equality state that we subtract the same number from both sides of an equation.
Subtract Nx from both sides of an equation;

Simplify:
or

Division Property of equality states that we divide the same number from both sides of an equation.
Divide by (34-N) to both sides of an equation;

On Simplify:

Answer:
Time in minutes = 66 2/3
Time in hours = 1.11
Step-by-step explanation:
Problem:
Time taken by both machine to make 20 yo-yo
let the time taken be x minutes
Given
Time taken by machine A to make 1 yo-yo = 5 mins
No. of yo-yo made by machine A in x minutes = x/5
Time taken by machine B to make 1 yo-yo = 10 mins
No. of yo-yo made by machine B in x minutes = x/10
Total no. of yo-yo made by both the machine = x/5 + x/10 = (2*x+x)/10
Total no. of yo-yo made by both the machine = 3x/10
But given that together they made 20 yo -yo
Thus,
3x/10 = 20
=> x = 20*10/3 = 200/3
Thus, it took 66 2/3 minutes to make 20 yo-yo by both of them
In one hour there is 60 minutes
Time taken in Hours will be = 200/3*60 = 200/180 = 10/9 = 1 1/9= 1.11 hours
10=2x+3,50 |-3,50
6,50=2x |:2
3,25=x
10=2x+7 |-7
3=2x |:2
1,5=x
You didnt say how many bakery she wants to buy, so i did one inequality for 1 bakery anderen for the maximum of 2.