Răspuns :
( a + 3700) - 2436 =2090
a + 3700 =2090 + 2436
a + 3700 = 4526
a = 4526 - 3700
a = 826
x=numarul la care ma gandesc
x+3700-2436=2090
x+3700= 2090+2436
x+3700=4526
x=4526-3700
x=826(nr la care m am gandit)
x+3700-2436=2090
x+3700= 2090+2436
x+3700=4526
x=4526-3700
x=826(nr la care m am gandit)