solvefor a,ra=5q-ma

解答

求解

a, r a = 5 q - ma

a = \frac{5 q}{r + m}; m \neq = - r

求解步骤

r a = 5 q - ma

将

ma

para o lado esquerdo

r a + ma = 5 q

分解

r a + ma : a (r + m)

a (r + m) = 5 q

两边除以

r + m; m \neq = - r

a = \frac{5 q}{r + m}; m \neq = - r

so l v e f or x, r = x - y

- 6 x + 7 (1 - x) = - 4 (x - 4)

so l v e f or m, 500 - 4 m = 124

7 x + 2 = 30

x = x