12/2 = 6, whether in algebra or otherwise.
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Multiply the reciprocal. i.e: 1/2 divided by 9/12=1/2 times 12/9
You can't. For example if your equation is: 2x+7=12 then you will subtract 7 by itself, then subtract 7 from 12. You then get 2x=5. You will then divide 5 by 2 and you will get x=2.5 as your final answer.
I think you add the largest and small number, then divide the answer by 2
x=3 Use the basic rules of algebra. 4x+2=14 Minus 2 on both sides. 4x=12 Divide by 4 on both sides. x=3
12