Ответ учителя по предмету Математика
( 223 440 — 130 *х ) :35 = 6 020
223 440 -130*х =6 020 *35
223 440 — 130 *х =210 700
130*х =223 440 — 210 700
130*х = 12 740
х =12 740 : 130
х =98
проверка:
(223 440 — 130 *98 ) : 35 =6 020
6 020 = 6 020
( 223 440 — 130 *х ) :35 = 6 020
223 440 -130*х =6 020 *35
223 440 — 130 *х =210 700
130*х =223 440 — 210 700
130*х = 12 740
х =12 740 : 130
х =98
проверка:
(223 440 — 130 *98 ) : 35 =6 020
6 020 = 6 020
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