Answer: 
Step-by-step explanation:
1. You have the following equation given in the problem above:

2. You must add 1/2 to both side of the equation, then:

3. Now, you must multiply each side of the equation given by 10, therefore, you obtain the following result:

Answer:
Yoshi bought <u>4 postcards.</u>
Step-by-step explanation:
20 ÷ 5 = 4
Answer:
x=35
Step-by-step explanation:
4+x-17=22
x+4-17=22
x-13=22
x-13+13=22+13
B this is because 15y is 10 a
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