toriyahcw toriyahcw
  • 22-03-2020
  • Mathematics
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what is the x value for 21x+7y=42

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Hilooew
Hilooew Hilooew
  • 22-03-2020

Step-by-step explanation: 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". In x + 2 = 7, x is a variable, but we can work out its value if we try!

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oliviazurbuch oliviazurbuch
  • 22-03-2020
The value of X is 1.66 repeated ?
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