If the difference of a number and 4 is multiplied by 3 the result is 19
The phrase a number means an arbitrary variable, let's call it x:
x
The difference of a number and 4:
x - 4
The phrase is multiplied by means we multiply x - 4 by 3:
3(x - 4)
The phrase the result is means equals, so we set 3(x - 4) equal to 19
3(x - 4) = 19
The phrase a number means an arbitrary variable, let's call it x:
x
The difference of a number and 4:
x - 4
The phrase is multiplied by means we multiply x - 4 by 3:
3(x - 4)
The phrase the result is means equals, so we set 3(x - 4) equal to 19
3(x - 4) = 19