Question

пжжжлст решите уравнения!

Answer 1

1)213 (x-89)=9585
x-89=9585÷213
x-89=45
x=45+89
x=134

2)(x+51)×309=16686
x+51=16686÷309
x+51=54
x=54-51
x=3

3)4848÷(60-x)=101
4848 =6060-101x
4848-6060=-101x
-1212=-101x
x=-1212:(-101)
x=12

4)9435:(77-x)=555
9435=42735-555x
9435-42735=-555x
-33300=-555x
x=-33300:(-555)
x=60