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2 years ago

12x−39≤9 AND−4x+3<−6, just solving for x please answer ASAP

Mathematics

1 answer:

kari74 [83]2 years ago

7 0

<u>Answer:</u>

Solving for x in 12x − 39 ≤ 9 and −4x + 3 < −6 we get 2.25 < x ≤ 4

<u>Solution</u>:

Need to find the value of x which satisfies following two given expressions

12x − 39 ≤ 9 ------(1)

−4x + 3 < −6 ------ (2)

Lets first solve expression (1)

12x − 39 ≤ 9

Adding 39 on both sides , we get

12x−39 + 39 ≤ 9 +39

=>12x ≤ 48

=> x ≤ 48/12

=> x ≤ 4

Now solving expression (2)

−4x+3<−6

=> -4x < -6 – 3

=> -4x < -9

=> 4x > 9

=> x > 9/4

=> x > 2.25

So from solution of expression (1) and (2) , we get x ≤ 4 and x > 2.25

Hence required value of x is 2.25 < x ≤ 4.

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