Question

Resuelve y verifica las siguientes ecuaciones de 1er grado,por favor verificacion
-2x+6=0

5x+8=2x-4

3(x+7)-6=2(x+8)

Answer 1

$- 2x + 6 = 0 \\ - 2 x = - 6 \\ x = 3 \\ \\ 5x + 8 = 2x - 4 \\ 5x + 8 = - 8 \\ 5x = - 8 - 8 \\ 5x = - 16 \\ x = - \frac {16}{5} \\ \\ 3(x + 7) - 6 = 2(x + 8) \\ 3x + 21 - 6 = 2x + 16 \\ 3x + 15 = 2x + 16 \\ 3x - 2x = 16 - 15 \\ x = 1$