Question

3.2 (2 - x) = 0.4 (2x - 4)
solve and check your answer​

Answer 1

Answer:

3.2(2 - x)=0.4(2x - 4)

8(2 - x)=2x - 4

16 - 8x=2x - 4

20=10x

x=2

Answer 2

Answer:

3.2 ( 2 - x ) = 0.4 ( 2x - 4 )

6 ( 2 - x ) = 2x - 4

12 - 6x = 2x - 4

12 + 4 = 2x + 6x

16 = 8x

x = 16/8

x = 2

Step-by-step explanation:

Check :-

LHS = 3.2 ( 2 - x )

RHS = 0.4 ( 2x - 4 )

3.2 ( 2 - x ) = 0.4 ( 2x - 4 )

6 ( 2 - x ) = 2x - 4

12 - 6x = 2x - 4

12 - 6x = 2x - 4

LHS = 12 - 6x = 0

====> -6x = 0 - 12

====> -6x = -12

====> x = -12/-6

====> x = 2

RHS = 2x - 4 = 0

====> 2x = 0 + 4

===> 2x = 4

===> x = 4/2

===> x = 2

LHS = RHS

hence proved