2-step equations with variables on both sides 8x + 9 = 11 × x x = ? can you explain how to do it? i really didn't understand when my teacher was teaching this

The length of a shadow of the building is 36m. the length of the pole, which is perpendicular to the ground, is 1.9m. the length of the pole's shadow is 1.52m. what is the height of the building?

Solve the equation. 2x - 8(x+1)= 6(2x - 3)

If 5x - 2 = -12, then x = a) -50 b) -4.4 c) -2.8 d) -2