solvefor a,3a+b=33.3

解答

求解

a, 3 a + b = 33.3

a = \frac{33.3 - b}{3}

求解步骤

3 a + b = 33.3

将

b

到右边

3 a = 33.3 - b

两边除以

3

a = \frac{33.3 - b}{3}

so l v e f or a, 27 m + 23 a + 5 n = 30

180 = \frac{x}{3.5}

3 x + 23 = 203

3 (m + 4) + 2 (m - 3) = m 18

so l v e f or x, \frac{x}{4} + \frac{y}{2} = 5