решить уравнение 1) 570 * X - 4 700 = 13 540 ...2) 340 * X - 416 * 2 = 18 208 .....3) (...

Question

решить уравнение 1) 570 * X - 4 700 = 13 540 ...2) 340 * X - 416 * 2 = 18 208 .....3) ( 223 440 - 130 * X) : 35 = 6 020 ,,,, 4) ( 31 * 550 - X ) * 120 = 10 200

Answer 1

1) 570 * X - 4 700 = 13 540

570*x=18240

x=32

 

2) 340 * X - 416 * 2 = 18 208

340*x=18 208 +832

340*x=19040

x=56

 

3) ( 223 440 - 130 * X) : 35 = 6 020

6384 -130x/35=6020

-130x/35=-364

x=98

 

 4) ( 31 * 550 - X ) * 120 = 10 200

(17050 - X ) * 120 = 10 200

2 046 000-120*x=10 200

-120*x=-2 035 800

x=16 965