Answer:
x = - 1
Step-by-step explanation:
Isolate the variable by dividing each side by factors that don't contain the variable.
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Answer:
Step-by-step explanation:
1/4 × 4 = 1
4 and 4 will get cancelled and only 1 will be left.
Hope this helps
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<span>the line over the 28 means the 28 repeats forever.
1.282828.... and so on
let x be the rational number 1.28...
we can use this trick:
100*1.282828....= 128.282828... (the decimal 28 part repeats)
100x = 128.28...
next:
100x - x = 128.282828... - 1.282828...
the .282828... part will be subtracted away
99x = 127
divide both sides by 99 to get
x= 127/99</span>
