1) x - 100 = 700 : x - 100 = 14x = 240
2) y : 2 * 6 = 12y = 120 / 1y = 10
3) a + 4 * 30 = 16a + 120 = 16a = 160 - 12a = 40
4) 40 + c = 2 * 440 + c = 8c = 80 - 4c = 40
Ответ1) x = 242) y = 13) a = 44) c = 40
1) x - 100 = 700 :
x - 100 = 14
x = 240
2) y : 2 * 6 = 12
y = 120 / 1
y = 10
3) a + 4 * 30 = 16
a + 120 = 16
a = 160 - 12
a = 40
4) 40 + c = 2 * 4
40 + c = 8
c = 80 - 4
c = 40
Ответ
1) x = 24
2) y = 1
3) a = 4
4) c = 40