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Add 4 to a number, multiply 4, subtract 4, divide 4, the result is still 4. What is this number? Don't answer. I know
The answer is 1
Let this number be x, and the equation can be solved
2.8 minus a number plus the sum of 0.6, divided by 2 is 1.5, how much is this number? List the equation, find the solution of the equation
Let this number be X
（2.8-x+0.6)÷2=1.5
3.4-x=3
x=0.4
What is 200 divided by 32
6.25
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