zahirul2000
zahirul2000
05-10-2017
Mathematics
contestada
twice a number minus 4 is 16
Respuesta :
Harkin
Harkin
05-10-2017
let the number be x, twice the number wil be 2*x=2x, minus 4, 2x-4=16, collect like terms, 2x=16+4, 2x=20, divide both sides by 2 x=10
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