Question

Află numerele necunoscute;
b.824-240:X=800
245+50×X=745
c.X:12×9=396
X×16:5=1360
Vă rog ajutați mă!​

Answer 1

Răspuns:

824-240:x=800

240:x=800-824

240:x=-24

X= - 24-240

X=-264

X:12x9=396

X:12=396:9

X:12=44

X=44x12

X=528

Xx16:5=1360

Xx16=1360:5

Xx16=272

X=272:16

X=17

Answer 2

824-240:x=800
824-800=240:x
24=240:x
x=240:24
x=20

245+50•x=745
50•x=745-245
50•x=500
x=500:50
x=10

x:12x9=396
x:12=396:9
x:12=44
x=44•12
x=528

x•16:5=1360
x•16=1360•5
x•16=6800
x=6800:16
x=425