4.8X - (4X - 3) = 48 36 × (2X - 36) = 72 해 방정식

4.8X - (4X - 3) = 48 36 × (2X - 36) = 72 해 방정식

4.8X - (4X - 3) = 48
4.8X - 4x + 3 = 48
0.8X = 48 - 3
0.8X = 45
x = 56.25
36 × (2X - 36) = 72
2x - 3.6 = 2
2x = 2 + 3.6
2x = 5.6
x = 2.8