Mathematics
Grade-8
Easy

Question

On subtracting 30 from two times a number, we get 56. This statement in the simplified form of an equation is

  1. x – 15 = 28
  2. 2x + 30 = 56
  3. 30 – 2x = 56   
  4. fraction numerator 30 over denominator 2 x end fraction = 56

The correct answer is: x – 15 = 28


    space x minus 15 space equals 28 space comma space i s space t h e space c o r r e c t space c h o i c e
L e t space t h e space n u m b e r space i s space equals space x
t w o space t i m e s space t h e space n u m b e r space equals space 2 x
o n space S u b t r a c t i n g space 30 space f r o m space t w o space t i m e s space t h e space n u m b e r space equals space 2 x space – space 30 space
t h e r e f o r e T h e space r e q u i r e d space e q u a t i o n space i s space 2 x space – space 30 space equals space 56 space space left parenthesis a c c o r d i n g space t o space q u e s t i o n right parenthesis
space space 2 x space – space 30 space equals space 56
2 space left parenthesis space x space minus space 15 space right parenthesis space equals 56
x minus 15 space equals space 56 over 2 equals 28
s o space x minus 15 space equals 28 space i s space t h e space a n s w e r

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