Răspuns :
a)x+577=867
x=867-577
x=290
b)529+x=630
x=630-529
x=101
c)x+1286=5875
x=5875-1286
x=4589
d)x+4461=894552
x=894552-4461
x=890091
a)x+577=867
x=867-577
x=290
b)529+x=630
x=630-529
x=101
c)x+1286=5875
x=5875-1286
x=4589
d)x+4461=894552
x=894552-4461
x=890091