Question

Реши уравнения.

1. х:5 = 1.400-900
x=???

2. x-30 = 1.000-200
x=??? ​

Answer 1

х:5 = 1400-900

х:5 =500

х=500*5

х=2500

2500/5=1400-900

    500=500

x-30 = 1000-200

x-30 =800

х=800+30

х=830

830-30=1000-200

    800=800