Question

Resolva as equações abaixo.

Me ajudem pfvvrr

Answer 1

1) -10 2x-x=18-28 -> x=-10
2)4 5x-2x=9+3 3x=12 x=12/3 -> x=4
4) 2x+3x-15=4x+9
5x-4x=9+15 x=24
6) 2x=-2+26 x=24/2 x=12