Решите уравнения 1) 8-2х = 3х-2 2) 15-2/3(дробь)х=х 3) 2,1х+9=9-4,6х 4) 0,8х-3,6=5,4-1,2х 5) 5,2-(3х-3,6)=1,4х…
решите уравнения
1) 8-2х = 3х-2
2) 15-2/3(дробь)х=х
3) 2,1х+9=9-4,6х
4) 0,8х-3,6=5,4-1,2х
5) 5,2-(3х-3,6)=1,4х
6) х+3 2х-1
——- = ———
5 12
х + 8 ¹/₁₁ = 16,1
х = 16 ¹/₁₀ — 8 ¹/₁₁ = 16 ¹¹/₁₁₀ — 8 ¹⁰/₁₁₀ = (16-8) + ⁽¹¹⁻¹⁰⁾ / ₁₁₀
х = 8 ¹/₁₁₀
=========================
8 ¹/₁₁₀ + 8 ¹/₁₁ = 16,1
8 ¹/₁₁₀ + 8 ¹⁰/₁₁₀ = 16,1
16 ¹¹/₁₁₀ = 16,1
16 ¹/₁₀ = 16,1
16,1 = 16,1
у — 9,7 = 8 ²/₃
у= 8 ²/₃ + 9,7 = 8 ²/₃ + 9 ⁷/₁₀ = 8 ²⁰/₃₀ + 9 ²¹/₃₀ = 17 + ⁴¹/₃₀ = 17 + 1 ¹¹/₃₀
у= 18 ¹¹/₃₀
==========================
18 ¹¹/₃₀ — 9,7 = 8 ²/₃
18 ¹¹/₃₀ — 9 ⁷/₁₀ = 8 ²/₃
18 ¹¹/₃₀ — 9 ²¹/₃₀ = 8 ²/₃
(17 + 1¹¹/₃₀) — 9 ²¹/₃₀ = 8 ²/₃
17 ⁴¹/₃₀ — 9 ²¹/₃₀ = 8 ²/₃
8 ²⁰/₃₀ = 8 ²/₃
8 ²/₃ = 8 ²/₃
43 ²/₉ — z =26.5
z= 43 ²/₉ — 26.5 = 43 ²⁰/₉₀ — 26 ⁴⁵/₉₀ = (42 — 26) + (¹¹⁰/₉₀ — ⁴⁵/₉₀)
z= 16 ⁶⁵/₉₀
z= 16 ¹³/₁₈
=========================
43 ²/₉ — 16 ¹³/₁₈ = 26.5
43 ⁴/₁₈ — 16 ¹³/₁₈ = 26.5
26 ⁹/₁₈ = 26.5
26 ¹/₂ = 26.5
26.5 = 26.5
100.3 +x = 102 ¹/₆
x= 102 ¹/₆ — 100.3 = 102 ¹/₆ — 100 ³/₁₀ = 102 ⁵/₃₀ — 100 ⁹/₃₀
x= 1 ²⁶/₃₀
x= 1 ¹³/₁₅
==========================
100.3 + 1 ¹³/₁₅ = 102 ¹/₆
100 ³/₁₀ + 1 ¹³/₁₅ = 102 ¹/₆
100 ⁹/₃₀ + 1 ²⁶/₃₀ = 102 ¹/₆
102 ⁵/₃₀ = 102 ¹/₆
102 ¹/₆ = 102 ¹/₆