Question if-4-x

1.2 Linear Equations in One Variable - Single-variable equations (multi-step)
0:00

If 4 x - 28 = -24 , what is the value of x - 7 ?

A.

-24

B.

-22

C.

-6

D.

-1

If 4 x - 28 = - 24 , what is the value of x -

Medium-difficulty · SAT Math · Linear Equations in One Variable — Single-variable equations (multi-step). Read the question above, select your answer, and check the full explanation below to understand exactly why the correct choice works.

Answer explanation

Choice C is correct. Dividing all terms in the given equation by 4 yields 4x4-284=-244, or x-7=-6. Therefore, the value of x - 7 is -6 .

Choice A is incorrect. This is the value of 4 x - 28 , not x - 7 .

Choice B is incorrect and may result from conceptual or calculation errors.

Choice D is incorrect and may result from conceptual or calculation errors.