Х+460=660, х-380=240, х÷40=640

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To solve these equations:

1) Х + 460 = 660

Subtract 460 from both sides:

Х = 660 - 460
Х = 200

2) Х - 380 = 240

Add 380 to both sides:

Х = 240 + 380
Х = 620

3) Х ÷ 40 = 640

Multiply both sides by 40:

Х = 640 * 40
Х = 25600

Therefore, the solutions for the equations are:
1) Х = 200
2) Х = 620
3) Х = 25600