Х+243=300 х+43=300 х+3=300
x+243=300
x=300-243
1) х=300-243. х=57. 2)х=300-43. х=57. 3) х=300-3. х=297
Х+243=300 х=300-243 х=57 57+243=300 х+43=300 х=300-43 х=257 257+43=300 х+3=300 х=300-3 х=297 297+3=300
Х+243=300 х+43=300 х+3=300 х=300-243 х=300-43 х=300-3 х=57 х=257 х=297 ----------------- --------------- -------------- 57+243=300 257+43=300 297+3=300 300=300 300=300 300=300