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KristinaViO
@KristinaViO
July 2022
1
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). Раскройте скобки и найдите значение выражения:
22,6 + (6,8 – 30,1) – (6,8 + 1,9).
2). Упростите выражения:
а) 1,2у + 3,6у – 0,7у;
б) 6b – b;
в) 7х – 6у –2х + 8у;
г) -4m + m + 3;
д) х + 2(3х – 1).
3) Решите уравнение: 6(х + 2) = 5(х – 3).
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Дастан123
22,6+(6,8-30,1)-(6,8+1,9)=22,6-23,3-8,7=-9,4
2)
а) 1,2у + 3,6у – 0,7у = 4,1y
б) 6b – b = 5b
в) 7х – 6у –2х + 8у = 5x + 2y
г) -4m + m + 3 = -3m + 3
д) х + 2(3х – 1) = 7x - 2
3) 6(x + 2) = 5(x - 3)
6x + 12 = 5x - 15
x = -27
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Answers & Comments
2)
а) 1,2у + 3,6у – 0,7у = 4,1y
б) 6b – b = 5b
в) 7х – 6у –2х + 8у = 5x + 2y
г) -4m + m + 3 = -3m + 3
д) х + 2(3х – 1) = 7x - 2
3) 6(x + 2) = 5(x - 3)
6x + 12 = 5x - 15
x = -27