solvefor x,3x+4y=-6

解答

求解

x, 3 x + 4 y = - 6

x = \frac{- 6 - 4 y}{3}

求解步骤

3 x + 4 y = - 6

将

4 y

到右边

3 x = - 6 - 4 y

两边除以

3

x = \frac{- 6 - 4 y}{3}

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

5 (r - 1) = 2 (r - 4) - 6

\frac{2}{5} f + 2 = - \frac{1}{2} (8 + \frac{12}{5} f) - 6

4 + 20 x + 8 x = 0

5 (x - 3) + 2 (3 + x) = 40