簡約 4x+(x-(2x-3))-(5-2(1-x))

解

簡約

4 x + (x - (2 x - 3)) - (5 - 2 (1 - x))

x

解答ステップ

4 x + (x - (2 x - 3)) - (5 - 2 (1 - x))

規則を適用する:

a + (b + c) = a + b + c

4 x + (x - (2 x - 3)) = 4 x + x - (2 x - 3)

= 4 x + x - (2 x - 3) - (5 - 2 (1 - x))

類似した元を足す:

4 x + x = 5 x

= 5 x - (2 x - 3) - (5 - 2 (1 - x))

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

- (5 - 2 (1 - x)) = - 3 - 2 x

= 5 x - 2 x + 3 - 3 - 2 x

条件のようなグループ

= 5 x - 2 x - 2 x + 3 - 3

類似した元を足す:

5 x - 2 x - 2 x = x

= x + 3 - 3

数を引く:

3 - 3 = 0

= x