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koban [17]
3 years ago
14

WILL MARK BRAINLIESTPlease can anyone tell me how to solve this equation and give me the answer i really want to understand this

and see how to do this in up coming problems
Solve for x: −2x − 4 > 8

Answer choices are

x < −6
x > −6
x < −2
x > −2
Mathematics
2 answers:
Simora [160]3 years ago
4 0
X is less than -6 so its the first one

lisabon 2012 [21]3 years ago
3 0
1) Transform the inequality into equation by replacing "<" or ">" with "=":
-2x - 4 > 8
-2x - 4 = 8
2) Simply solve for x:
-2x - 4 = 8
-2x = 8 + 4
-2x = 12
x = -6
3) Now do the following exactly the same: first, look into the symbol that you have replaced (">" or "<"). Put the same symbol into your answer "x = -6":
x > -6
4) Now, look which symbol was in front of "x" in the original inequality (-2x - 4 = 8). If it is "+" (for example, 4x, 0.01x) leave "x > -6". If it is "-" (for example, -3x, -0.04x) change ">" into "<" or change "<" into ">" (put the opposite symbol).
5) You have -2x in the original inequality - then, in "x > -6" change the symbol into "<". So, your answer will be
x < -6 or the option 1.
Hope this helps!
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