Answer:
12x−39≤9 AND−4x+3<−6
Solve them separately and then put back together
12x−39≤9
Add 39 to each side
12x−39+39≤9+39
12x ≤48
Divide by 12
12x/12 ≤48/12
x ≤4
Now the other inequality
−4x+3<−6
Subtract 3 from each side
−4x+3-3<−6-3
-4x < -9
Divide by -4, remembering to flip the inequality
-4x/-4 > -9/-4
x > 2 1/4
put back together
x > 2 1/4 and x ≤4
2 1/4 < x ≤ 4
Step-by-step explanation:
