Question

Me ajudem pfvr, tô precisando urgente​

Answer 1

Resposta:

8)

a) 3x-×=15-4

2×=11

×=11/2

b)

5y-y=6

4y=6

y=6/4

y= 3/2

9)

a) 3x+15= 2x -4

3×-2×=-4-15

×=-19

b)

4x +28-2×=48

2×=48-28

2×=20

×=20/2

×=10

10,)

5x+10 -13=6x-2

5×-6×=-2+13-10

-×=1

×=-1

letra A