Simplify -12x + 5x. please need it to pas class 50 points and please only answer if correct
2 answers:
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Answer:
1) Solutions are x = 3 and x = 5/3
2) Solution are x ≤ 13/2 and x ≤ -3/2
Step-by-step explanation:
1) Given absolute inequality,
|3x-7| = 2
⇒ 3x - 7 = ± 2
⇒ 3x = 7 ± 2
2) l 2x-5 l ≤ 8
⇒ 2x-5 ≤ ±8
⇒ 2x ≤ 5 ± 8
What we know:
(Also, )
What we need to solve:
(This is equal to
)
How you have to subtract with
to get:
Thus, the answer would be: