Question

resolva as equações

4.(x-1)-2.(3×+4)=6




3.(2x-5)=9-2x




x+5=3x-3





6.(x -2)=12




x+4=2x-1


me ajudem por favorr






​

Answer 1

1. 4(x - 1) - 2(3x + 4) = 6

4x - 4 - 6x - 8 = 6

4x - 6x = 6 + 4 + 8

-2x = 18

x = -9

2. 3(2x - 5) = 9 - 2x

6x - 15 = 9 - 2x

6x + 2x = 9 + 15

8x = 24

x = 24/8

x = 3

3. x + 5 = 3x - 3

x - 3x = -3 - 5

-2x = -8

2x = 8

x = 8/2

x = 4

4. 6(x - 2) = 12

x - 2 = 2

x = 2 + 2

x = 4

5. x + 4 = 2x - 1

x - 2x = -1 - 4

-x = -5

x = 5