Решить уровнение 1. 54: x + 11 = 800 : 40 2. x * 5 +12 * 9 = 138 3. 120 + x * 3 = 375 4. 600 - 120 + x * 6 = 600 5. 1260 + 2 * x = 3000

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archakova65

Математика

4,6(26 оценок)

54: х + 11 = 800 : 40 54: х+11 = 20 54: х = 20 - 11 54: х = 9 х= 54 : 9 х=6 54 : 6 + 11 = 800: 40 9 + 11 = 20 20=20 х*5 +12*9 = 138 5х + 108 = 138 5х = 138 - 108 5х = 30 х = 30: 5 х=6 6 * 5 + 12*9 = 138 30 +108 = 138 138=138 120 + х*3 = 375 х*3 = 375 - 120 3х = 255 х= 255 : 3 х = 85 120 + 85 *3 =375 120 +255=375 375=375 600 - 120 +х*6 =600 6х = 600-600 + 120 6х =120 х=120: 6 х= 20 600 - 120 + 20*6 = 600 600 - 120 + 120 = 600 600=600 1260 +2х=3000 2х = 3000 - 1260 2х =1740 х=1740 : 2 х= 870 1260 + 2*870 = 3000 1260 +1740=3000 3000=3000

нурислам15

Математика

4,6(9 оценок)

54: х + 11 = 800 : 4054: х+11 = 20 54: х = 20 - 1154: х = 9х= 54 : 9 х= : 6 + 11 = 800: 409 + 11 = 2020=20 х*5 +12*9 = 1385х + 108 = 1385х = 138 - 1085х = 30х = 30: 5х= * 5 + 12*9 = 13830 +108 = 138138=138 120 + х*3 = 375х*3 = 375 - 1203х = 255х= 255 : 3х = 85 + 85 *3 =375120 +255=375375=375 600 - 120 +х*6 =6006х = 600-600 + 1206х =120х=120: 6х= - 120 + 20*6 = 600600 - 120 + 120 = 600600=600 1260 +2х=30002х = 3000 - 12602х =1740х=1740 : 2х= + 2*870 = 30001260 +1740=30003000=3000