Solve for x: −3|2x + 6| = −12
x=-6x+18=-12
-12-18=-22
is that the final answer?
? oh, soory, -30./6=-5
the final answer is 5 not -5
u put 6 instead of -6
ok. do you have tha answer now?
it is -5. but alright. were done here
the absolute sign prohibits negetive 6, but do as you will.
−3|2(-5) + 6| = -3|-10 + 6| = -3|-4| = -3(4) = −12 Good. x = -5 checks out. −3|2(-1) + 6| = -3|-2 + 6| = -3|4| = -3(4) = −12 Whoops. Looks like you'all missed one. x = -1. How could you have avoided that?
@hermineb @Fireflame13
thxx Tkhunny
thxx fireflame13 but u wasnt specific thats y i was confused
it's fine.
Let's try it again: -3|2x + 6| = −12 Stuff outside the the Absolute Values doesn't do much. Let's make our lives simpler. |2x + 6| = 4 Common factor in the two terms inside the Absolute Values. Let's make our lives simpler. |2x + 6| = |2(x+3)| = 2|x+3| = 4 and |x+3| = 2 That's WAY easier. x+3 = 2 or x+3 = -2 And both solutions are easily found.
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