Toán Lớp 6: Tìm x 2(x – 4) – (x + 5) = –13

2 ( x - 4) - ( x + 5) = -13 2x - ( 2 . 4) - x - 5 = -13 2x - 8 - x - 5 = -13 ( 2x - x) - ( 8 + 5) = -13 x - 13 = -13 x = -13 + 13 x = 0 Vậy x = 0

2(x-4)-(x-5)=-13 ⇔2x-8-x+5=-13 ⇔x-3=-13 ⇔x=-13+3 ⇔x=-10 Vậy x=-10

Toán Lớp 6: Tìm x 2(x – 4) – (x + 5) =

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