0.4=1.5y+0.4

解答

0.4 = 1.5 y + 0.4

y = 0

求解步骤

0.4 = 1.5 y + 0.4

两边减去

0.4

0.4 - 0.4 = 1.5 y + 0.4 - 0.4

化简

0 = 1.5 y

交换两边

1.5 y = 0

在两边乘以

10

15 y = 0

两边除以

15

y = 0

so l v e f or x, 8 x - 3 y - 4 = 0

so l v e f or x, \frac{12}{7} y + \frac{1}{7} x = 0

so l v e f or a, 2 a + 2 b = 110

so l v e f or x, 3 y = 2 x + 4

so l v e f or x, 3 (x - 2) + 2 y = 20