Question

Please help! Simplify and THEN evaluate. Please give the simplified expression and the value!!!!
−12x+14x−6x
If x=129

Answer 1

Answer:

Hi there the correct answer -516

Step-by-step explanation:

(−12)(129)+(14)(129)−(6)(129)  

then you get your answer from there

Answer 2

Answer:

Step-by-step explanation:

-12x+14x-6x

(-12+14-6)x

Then -12+14=14-12=2. Commutative law

Also 2-6=-4

Then, -12+14-6=-4

(-12+14-6)x

-4x

Then when x =129

Then, substitute x =129 into -4x

-4x

-4(129)

-516