1330): 2) - 4x + 8 - 7 = x - 1; 4) 5y = 2y + 9.2) - вопрос №1330248714529253104610537882 от LenaED 04.08.2020 04:11

Question

Математика: 1330): 2) - 4x + 8 - 7 = x - 1; 4) 5y = 2y + 9.2) 5(y + 3) = 10; 4) 6(z - 1) = 18. ​

LenaED · Answer

1) -4х+8-7 = х-1-4х-х = -1-8+7-5х = -9+7-5х = 2х = -2/52) 5у = 2у+95у-2у = 93у = 9у = 9:3у = 33) 5(у+3) = 10у+3 = 10:5у+3 = 2у = 2-3у = -14) 6(z-1) = 18z-1 = 18:6z-1 = 3z = 3+1z = 4...

1330): 2) - 4x + 8 - 7 = x - 1; 4) 5y = 2y + 9.2) 5(y + 3) = 10; 4) 6(z - 1) = 18. ​

1330):
2) - 4x + 8 - 7 = x - 1;
4) 5y = 2y + 9.
2) 5(y + 3) = 10;
4) 6(z - 1) = 18.