(X – 3) = 45; 3) (2600 + 6400) – 3

1) 2.x – 138 = 2

3

.3

2

; 2) 70 – 5.(x – 3) = 45; 3) (2600 + 6400) – 3.x = 1200;

BÀI LÀM

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