Question

Решите неравенство 4+5x равно 11-(9-7x)

Answer 1

4+5х=11-(9-7х) 4+5х=11-9+7х 5х-7х=11-9-4 -2х=2 Х=-2:(-2) Х=1

Answer 2

4+5x=11-(9-7x)
4+5x=11-9+7x
4+9-11=7x-5x
2=2x
x=2:2
x=1