Write 25.72 correct to one decimal place

In this case you round down so that you only have 1 decimal place. you also just look at the number before the one you want to be left. if the number is 4 or less then you round down if it is 5 out more you round up. for instance 5.47 you would round up to 5.5.I hope this helped.

-2x + 7 = 7

subtract 7 from both sides.

-2x = 0

divide both sides by -2.

x = 0

the value of x is equal to 0.