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  • 30-04-2021
  • Mathematics
contestada

What inverse operation should be used to isolate the variable in the equation 10 × b = 90?

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InsertNameHere7575
InsertNameHere7575 InsertNameHere7575
  • 30-04-2021

Division

10 x b = 90

is the same as

b x 10 = 90

divide both sides by 10

b x 10 ÷ 10 = b

90 ÷ 10 = 9

so

b = 9

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