Question

afla termenul necunoscut folosind metoda mersului invers verifuca rezultatul a+12-36=94 b-56+38=37 74-a-a=36=45 64-a+34=100
va rog imi trebuie un raspuns dau coroana!

Answer 1

a+12-36= 94
a=94+36-12
a= 130-12
a= 118
118+12-36= 130-36= 94

b-56+38=37
b= 37+56-38
b= 93-38
b= 55
55-56+38= - 1+38= 37

64-a+34= 100
64-a= 100-34
64-a= 66
-a= 66-64
-a=2 =>a= - 2
64-(-2)+34=64+2+34= 100

74-a-36= 45
-a= 45+36-74
-a= 81-74
-a= 7 =>a= - 7
74-(-7)-36=74+7-36= 81-36= 45

e+15+321-225= 120
e= 120+225-321-15
e= 9
9+15+321-225= 345-225= 120

f-256+345-126= 453
f= 453+126-345+256
f= 579-345+256
f= 234+256
f= 490
490-256+345-126= 453

g-679+345+123= 673
g= 673-123-345+679
g= 550-345+679
g= 205+679
g= 884
884-679+345+123= 673