(207+х)+118=207+(126+х)
207 + 118 = 207 + x + 126 +x
325 = 333 + 2x
325 - 333 = 2x
2x = -8
x = -4
+207+х+118=207+126+х 1х-1х=-207-118+207+126 0х=422 х=422