a number is twice another number
The phrase a number means an arbitrary variable, let's call it x
The phrase another number means another arbitrary variable, let's call it y
Twice means we multiply y by 2:
2y
The phrase is means an equation, so we set x equal to 2y:
x = 2y
The phrase a number means an arbitrary variable, let's call it x
The phrase another number means another arbitrary variable, let's call it y
Twice means we multiply y by 2:
2y
The phrase is means an equation, so we set x equal to 2y:
x = 2y