(3x-10)+(6x-1)+(4x-3)+(2x-1)=360

解答

(3 x - 10) + (6 x - 1) + (4 x - 3) + (2 x - 1) = 360

x = 25

求解步骤

(3 x - 10) + (6 x - 1) + (4 x - 3) + (2 x - 1) = 360

去除括号:

(a) = a

3 x - 10 + 6 x - 1 + 4 x - 3 + 2 x - 1 = 360

对同类项分组

3 x + 6 x + 4 x + 2 x - 10 - 1 - 3 - 1 = 360

so l v e f or a, a + b - c - 3 d + 2 e = f + 2

so l v e f or x, 4 cos (x) sin (y) = 1

\frac{x + 4}{3} = \frac{x - 2}{3}

3 (1 - (1 - 2 (1 - x))) = - 2 (x - 2)

\frac{x + 5}{2} = 1 - x