If 7 x = 28 , what is the value of 8 x ?

Question

Accepted Answer

Choice B is correct. Dividing both sides of the given equation 7 x = 28 by 7 yields x = 4 . Substituting 4 for x in the expression 8 x yields 8 4 , which is equivalent to 32 . Choice A is incorrect. This is the value of 21 4 x . Choice C is incorrect. This is the value of 42 x . Choice D is incorrect. This is the value of 56 x .

Question if-7-x