22.4(0.2-7) - 5(0.3x+6) = 5
22.4(-6.8) - 5(0.3x+6) = 5
-150.72 - 1.5x - 30 = 5
-180.72 - 1.5x = 5
-1.5x = 180.72 + 5
-1.5x = 185.72
x = -185.72 / -1.5
x ≈ 123.81
Ответ: x ≈ 123.81
22.4(0.2-7) - 5(0.3x+6) = 5
22.4(-6.8) - 5(0.3x+6) = 5
-150.72 - 1.5x - 30 = 5
-150.72 - 1.5x - 30 = 5
-180.72 - 1.5x = 5
-1.5x = 180.72 + 5
-1.5x = 185.72
x = -185.72 / -1.5
x ≈ 123.81
Ответ: x ≈ 123.81