Question

Află termenul necunoscut: a) 4830 + x = 7031; b) 13043 + x = 13093; c) 850- x = 140; a) x = d) 1243 - x = 947; e) 12342 + x = 12943; 15013-x = 471; f) g) 438 + x - 148 = 572; h) x-170 +372 = 602; i) 831 + x + 169 = 1000.​

Answer 1

Explicație pas cu pas:

a)4830+x=7031

x=7031-4830

x=2201

b) 13043+x=13093

x=13093-13043

x=50

c) 850-x=140

x=850-140

x=710

d) 1243-x=947

x=1243-947

x=296

e) 12342+x=12943

x=12943-12342

x=601

f) 15013-x=471

x=15013-471

x=14542

g) 438+x-148=572

438+x=572-148

438+x=424

x=14

h) x-170+372=602

x-170=602-372

x-170=230

x=230+170

x=400

i) 831+x+169=1000

831+x=1000-169

831+x=831

x=831-831

x=0

Succes!