Answer:
51 dollars
Step-by-step explanation:
4 times 12.75 =51
Let <em>x</em> = 8.132132132...
Then 1000<em>x</em> = 8132.132132132...
Subtract <em>x</em> from 1000<em>x</em> to eliminate the fractional part:
1000<em>x</em> - <em>x</em> = 8132.132132132... - 8.132132132...
999<em>x</em> = 8132 - 8 = 8124
<em>x</em> = 8124/999 = 2708/333
Step-by-step explanation:
2x+1x= -2+1
3x= -1
3x÷3= -1÷3
x=|-3.3333..|=3.33333.. or

Second one if you distribute the first expression you get the second equation so the expressions are equivalent