Respuesta :
2x+30=186
We move all terms to the left:
2x+30-(186)=0
We add all the numbers together, and all the variables
2x-156=0
We move all terms containing x to the left, all other terms to the right
2x=156
x=156/2
x=78
Answer:
78
Step-by-step explanation:
2x + 30 = 186
2x=186-30
2x=156
x=156/2
x=78