(351 + у ) – 149=63
351+y-149=63
202+y=63
y=63-202
y=-139
(351+у)-149=63
351+у=63+149
351+у=212
У=212-351
У=-139
(351 + у ) – 149=63
351+y-149=63
202+y=63
y=63-202
y=-139
(351+у)-149=63
351+у=63+149
351+у=212
У=212-351
У=-139