Question

1) 4×-12=×

2) 9×+5=4×

3) 7×-24=-×​

Answer 1

Resposta:

4; -1; 3

Explicação passo a passo:

1) -3x = -12

   -x = -4

    x = 4

2) 5 = -5x

    1 = -x

    x = -1

3) -8x = -24

    x = 3

   

Answer 2

1) 4x-12=x
4x+x=+12
2x=-4+12
2x=8
x=8/2= 4

2) 9x+5=4x
9x-4x=-5
5x=-5
x=-5/5= X=-1

3) 7x-24=-x
7x+x=24
2x=24-7
2x=17
x=17/2
x=8,5