Question

Qual o valor de X na 8×-3=2×+21?

Answer 1

8x - 3 = 2x + 21

8x = 2x + 21 + 3

8x - 2x = 21 + 3

6x = 24

x = 24/6

x = 4

Answer 2

• Isole x

8x -3 = 2x +21

8x -2x = 21 +3

6x = 24

x = 4

$\boxed{\textrm{x = 4}}$