Question

3.(x-2)-2.(x+1)=-30

Tìm x

Answer 1

3(x - 2) - 2(x + 1) = -30

3x - 6 - 2x - 2 = -30

(3x - x) - (6 + 2) = -30

x - 8 = -30

x = -30 + 8

x  =-22

Answer 2

=> 3x-6-2x-2=-30

=> x=-30+6+2=-22

Answer 3

3.(x-2)-2.(x+1)=-30

=> 3.x-6-2.x-2=-30

=> x-8=-30

=> x=-30+8

=> x=-22

Answer 4

Tìm x, y thuộc Z sao cho:

x(y+2)=-8

xy - 2x- 2y=0

Giúp mình tick cho!!

Answer 5

3(x - 2) - 2(x + 1) = -30

3x - 6 - 2x - 2 = -30

(3x - x) - (6 + 2) = -30

x - 8 = -30

x = -30 + 8

x  =-22

Answer 6

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