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3 votes
5(9-x)/3 +1 less than 11
find x​

User Nijoakim
by
5.2k points

1 Answer

5 votes

Answer:

x >
(1)/(5)

Explanation:


(5(9-x))/(3+1)<11

Add 3 and 1 to get 4.


(5(9-x))/(4)<11

Use the distributive property to multiply 5 by 9−x.


(45-5x)/(4)<11

Subtract 45/5 from both sides.


-(5)/(4)x<11-(45)/(4)

Since 44/4 and 45/4 have the same denominator, subtract them by subtracting their numerators.


-(5)/(4) x<-(1)/(4)

Multiply both sides by -4/5, the reciprocal of -5/4. Since -5/4 is negative, the inequality direction is changed.


x>-(1)/(4) (-(4)/(5) )

Multiply -1/4 times -4/5 by multiplying numerator times numerator and denominator times denominator.


x>(-(-4))/(4 x 5)


x>(1)/(5)

User Julep
by
4.8k points