Question

What value of x makes the equation true?



–4.9 = –5.7 + x



A.


x = –10.6


B.


x = –0.8


C.


x = 0.8


D.


x = 10.6

Answer 1

C.

Answer 2

-4.9 = -5.7 + x
add 5.7 to each side
x = 0.8

Answer 3

Solve for x:

\[-4.9 = x - 5.7\]

Reverse the equality in -4.9 = x - 5.7 in order to isolate x to the left hand side.

\[x - 5.7 = -4.9\]

Add +5.7 to both sides..

\[x = 0.8\]

So your final answer is C. X = 0.8