When you multiply or divide an inequality by a ______ number, you must flip the inequality symbol.
1 answer:
When you multiply or divide an inequality by a negative number, you must flip the inequality symbol.
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#19
-4/5x=8
-4(x)/5=8
-4x/5=8
Multiply both sides by
-4x=8(5)
-4x=40
Divide both sides by -4
X= -10
#21
-4/3x+5=7
Multiply both sides by 3
-4/3x(3)+5(3)=7(3)
-4x+15=21
-4x=21-15
-4x=6
X=6/-4
X=-3/2
Answer:
eahti-1
Step-by-step explanation:
Answer:
2x²-24x+54
2(x²-12x+27)
2(x²-9x-3x+27)
2(x(x-9)-3(x-9))
2(x-9)(x-3)
Answer:
x=0 or x=-4
Step-by-step explanation:
0=x²+4x
0=x(x+4)
x=0 or x=-4
Answer:
B
Step-by-step explanation:
it's B because it says -0.9<u>05</u>