Question

1. Solve the following by method of transposition and verify your answers by substituting in the equations
2 (1-x)=-12​

Answer 1

Answer:

2 (1 - x) = -12

2 - 2x = -12

- 2x = -12 - 2

- 2x = -14

x = -14/-2

x = 7.

Verification -:

If we put 7 in the place of x, then we get -:

2 (1 - 7) = -12

2 - 14 = -12

-14 = -12 - 2

-14 = -14.

x = 7 satisfies the equation. Thus the answe is 7.

Hence verified.

Hope it helps! I used the transposition method as you mentioned :)

Answer 2

Answer:

2(1-x) = -12. (question)

*2-2x = -12. (solve the Bracket)

*-2x = -12 - 2. (by transportation method)

*-2x = -14

* x = 7. (and 14 can divisible by 2)

Hence, the power of (x) is 7.

Verification :

put the Value 7 to x

and then solve and see the Magic...