Question

реште уравнение

(80x+240)разделить на180=4

500-360разделить на(y-4)=460

8t-3t+5t=70

n+4n-3n=56

Answer 1

(80x+240)/180=4

80х+240=4*180

80х+240=720

80х=720-240

80х=480

х=6

 

500-360/(y-4)=460 

-360/(у-4)=-40

-360=-40у+160

40у=520

у=13

 

8t-3t+5t=70

10t=70

t=7

n+4n-3n=56

2n=56

n=28

Answer 2

(80x+240)/80=4

80х+240=4*80

80х=320-240

х=80/80

х=1

 

500-360/(y-4)=460

360/(y-4)=500-460

у-4=360/40

у=9+4

у=13

 

8t-3t+5t=70

10t=70

t=70/10

t=7

 

n+4n-3n=56

2n=56

n=56/2

n=28