127503
127503
01-10-2019
Mathematics
contestada
How can I sole 2x over 3 is greater than 4x+10
Respuesta :
SupaPreme
SupaPreme
02-10-2019
Answer: x < -3
Explanation:
(2x)/3 is greater than 4x+10
(2x)/3 > 4x + 10
You want to isolate x on 1 side:
Multiply both sides by 3
=> 2x > 3 (4x + 10)
=> 2x > 12x + 30
Subtract 12x from both sides:
=> -10x > 30
Divide -10 from both sides. Note when multiplying or divide by a negative number in inequality, you must flip sign:
=> x < -3 for (2x)/3 to be greater than 4x+10
Check: plug in -6
2(-6) / 3 ? 4(-6)+ 10
-4 ? -14
-4 > -14
This inequality is valid.
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