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A number decreased by 3 is equal to 40. Write an equation.
 one year ago
 one year ago
A number decreased by 3 is equal to 40. Write an equation.
 one year ago
 one year ago

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CoolsectorBest ResponseYou've already chosen the best response.0
let that number be x so : x  3 = 40
 one year ago

Dido525Best ResponseYou've already chosen the best response.0
Let the number be x so x3=40
 one year ago

amorfideBest ResponseYou've already chosen the best response.1
you want to denote "a number" with an unknown we will use the letter x x 3 is equal to 40 x3=40
 one year ago
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