Answer:
The letter "x" is often used in algebra to mean a value that is not yet known. It is called a "variable" or sometimes an "unknown".
Step-by-step explanation:
In x + 2 = 7, x is a variable, but we can work out its value if we try:)
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Can't see question properly. Whats the power on the second number?
Answer:
Step-by-step explanation:
132
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Answer:
Sure Why Not
Step-by-step explanation: