Question

3X+2=5x-2

8x+2x+2=12x-4

Answer 1

$3x + 2 = 5x - 2 \\ 3x - 5x = - 2 - 2 \\ - 2x = - 4 \\ 2x = 4 \\ x = 2$


S = {2}



$8x + 2x + 2 = 12x - 4 \\ 8x + 2x - 12x = - 4 - 2 \\ 10x - 12x = - 6 \\ - 2x = - 6 \\ 2x = 6 \\ x = \frac{6}{2 } \\ x = 3$


S = {3}

Answer 2

Olá,

→ 3x + 2 = 5x - 2

→ 3x - 5x = -2 - 2

→ -2x = -4 (-1)

→ 2x = 4

→ x = 4/2

→ x = 2

→ 8x + 2x + 2 = 12x - 4

→ 8x +2x - 12x = -4 - 2

→ -2x = -6 (-1)

→ 2x = 6

→ x = 6/2

→ x = 3

Espero ter ajudado!!!