Question

Resolva as equações.

5x+3×=16

×+×+8=54

7×-2-5×=18

12×-10×-4=3

-×-2×-4×=11

8×=5×+4,5

OBS: QUERO AS CONTAS​

Answer 1

Explicação passo-a-passo:

5x+3x=16

8x= 16

x=16/8

x= 2

x+x+8=54

2x=54-8

2x=46

x=46/2

x=23

7x-2-5x=18

7x-5x=18+2

2x=20

x=20/2

x=10

12x-10x-4=3

2x=3+4

2x=7

x=7/2

-x-2x-4x=11

-3x-4x=11

-7x=11

x=-11/7

8x=5x+4,5

8x-5x=4,5

3x=4,5

x=4,5/3

x=1,5