solvefor f,f={-x+4}

解答

求解

f, f = {- x + 4}

f = - x + 4

求解步骤

f = {- x + 4}

去除括号:

(a) = a

f = - x + 4

so l v e f or x, - 2 x + y = 7

0.4 (12 - 2 x) = 22.2 - (6 x + 7)

47 - 3 x = 5 + 11 x

so l v e f or x, 4 x - y = - 1

y = lo g_{2} (\frac{1}{4})