Решите уравнения:

А) (2400+z) : 40=80

Б) 1500: x-300=200

В) 2800 - (t-357) = 100

Г) (2400:40) + u=80

Д) (1500-300) : y=200

Е) h - (2800-357) = 100

A) (2400+z) : 40=80

2400+z=40*80

2400+z=3200

z=3200-2400

z=800

Б) 1500; X-300=200

1500:X=200+300

1500:X=500

X=1500:500

X=3

2800 - (t-357) = 100

- (t-357) = 100-2800

- (t-357) = - 2700

t-357=2700

t=2700+357

t=3057

(2400:40) + 4=80

80+u=80

u=80-80

u=0

(1500-300) ; y=200

1200:y=200

y=1200:200

y=6

h - (2800-357) = 100

h-2443=100

h=2443+100

h=2543

А) (2400+z) : 40=80

2400+z = 80*40

2400+z=3200

z=3200 - 2400

z=800

Б) 1500: x-300=200

1500:х = 200+300

1500:х=500

х=1500:500

х=3

В) 2800 - (t-357) = 100

t-357=2800-100

t-357=2700

t=2700+357

t=3057

Г) (2400:40) + u=80

60+u=80

u=80-60

u=20

Д) (1500-300) : y=200

1200:у=200

у=1200:200

у=6

Е) h - (2800-357) = 100

h-2443=100

h = 2443+100

h=2543