Respuesta :
Answer:
Subtract both sides by x
Step-by-step explanation:
Because x is on both sides, we want x to only be on one side of the equation, so the next step should be to subtract both sides by x so x is eliminated from the right side.
3x+7=x-21
2x+7=-21
2x=-28
x=-14
And the solution becomes x=-14
Answer:
Subtract x from both sides
Step-by-step explanation:
3x+7=x-21
3x=28=x
28=-2x
28/2=14
have a nice day!!
