Решите уравнения x2 + 6=5x

2-3 (2x+2) = 5-4x

-2 (5-3x) = 7x+3

1-2 (5-2x) = - x-3

Х2+6=5 х

6=5 х-2, х

6=3, х

х=6/3

х=2

2-3 (2 х+2) = 5-4 х

2-6 х-6=5-4 х

-6 х+4 х=5-2+6

-2 х=9

х=-9:2

х=-4.5

-2 (5-3 х) = 7 х+3

-10+6 х=7 х+3

6 х-7 х=3+10

-х=13

х=-13

1-2 (5-2 х) = - х-3

1-10+4 х=-х-3

4 х-9=-х-3

4 х+х=-3+9

5 х=6

х=6:5

х=1.2