13a - 2bc+19bc= 13a +17 bc A - 10nm + 9x- 20nm = 1 Omm - 9x K
(x2 – 5) + (x2 – 4) = -2x2–9
a(3-X)-2(a-ax)= a + ax A
2(x-5)-3(x+1)= X-7 K
(2x + 1) – (4 – x) - (12 - 5x) = 8x комектесындерш​

aiphone20032    2   21.10.2020 07:40    0