Question

Resolva as equações. a)Sx=2x+3 b)4x+9=x-6

Answer 1

5x=2x+3
5x-2x=3
3x=3
x=3/3
x=1

b)4x+9=x-6
4x-x=-6-9
3x=-15
x=-15/3
x=-5

Answer 2

a)
5 x = 2 x + 3
5 x - 2 x = 3
3 x = 3
x = 3/3
x = 1

b)
4 x + 9 = x - 6
4 x - x = - 6 - 9
3 x = - 15
x = - 15 / 3
x = - 5