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Many people allow English to fall to the bottom of their priority list when revising for exams. Unlike other academic subjects, English is not a sequence of learning facts for a simple question and answer...
Quesiton:
Solve 10x - 7 = 5x + 3, to find the value of x
Answer:
x = 0.5
Solution:
As we know so far, c = f / λ. This equation comes from a much simpler version of speed = distance/ time. As the λ (with units "m") can be seen as distance and the frequency (with units "...
x = 4.5
Rearrange the equation, so that like terms are on the same side:
5x - 3x = 2 +7
2x = 9
Then to find x, divide 9 by 2
x = 4...
This is the minimum amount of energy reacting particles must have to undergo a chemical reaction.
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