4x-5=43

解答

4 x - 5 = 43

x = 12

求解步骤

4 x - 5 = 43

将

5

到右边

4 x = 48

两边除以

4

x = 12

12.5 = - 1.5 + \frac{b}{0.1}

so l v e f or x, x y^{2} + x y - 2 x = 2

so l v e f or x, 72% x + 58% y = (x + y) \cdot 62%

\frac{- ( 2 k - 1 )}{4} = \frac{2}{5}

\frac{2}{3} x - \frac{1}{2} = - x + 2