1) у=-4*4+5
у= -16+5= -11
у= -11
2) 9= -4х + 5
- 4х+5=9
- 4х =9 - 5
-4х = 4
х = 4+4
х = 8
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Verified answer
1) у=-4*4+5
у= -16+5= -11
у= -11
2) 9= -4х + 5
- 4х+5=9
- 4х =9 - 5
-4х = 4
х = 4+4
х = 8