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2 votes
I'm giving 100 points if you answer these questions. CORRECTLY
-3x+5>20
1/2x-12<6

User Sarz
by
5.1k points

2 Answers

12 votes

Answer:

x< -5, x<36

Explanation:


-3x+5>20} \atop {(1)/(2)x-12<6 }} \right. \\

Start with the first equation and solve for x

-3x+5>20

-5 -5

-3x>15

/-3 /-3

x< -5

Do the second:


(1)/(2)x-12<6

+12 +12


(1)/(2)x<18

/0.5 /0.5

x< 36

User Max Potapov
by
5.0k points
9 votes

Are they a system or separate inequalities? I'm not sure but either way I will solve each:


\begin{bmatrix}-3x+5>20\\ (1)/(2)x-12<6\end{bmatrix}


-3x+5>20,\\-3x>15,\\x<-5


(1)/(2)x-12<6,\\(1)/(2)x<18,\\x<36

Now if it were a system, the solution would be x<-5, since x<36 is the restriction. Otherwise just take x<-5 and x<36 independent of each other.

User VaclavD
by
5.3k points