Question

x-4+3x=5 Решите уравнение
2

Answer 1

$4x = 5 + 4 \\ 4x = 9 \\ x = \frac{9}{4} = 2 \frac{1}{4} = 2.25$

Answer 2

4x=9

x=9:4

x=2 (одна четвёртая)