Question

решите неравенство 8х+3>9 (х-2)

Answer 1

8х+3>9х-18
-х>-21
х<21

Answer 2

8х+3>9 (х-2)
8x+3>9x-18
8x-9x>-18-3
-x>-21
x<21
x∈(−∞;21)