Choose the answer based on the most efficient method as presented in the lesson.
If the first step in the solution of the equation -9 + x = 5x - 7 is "subtract x," then what should the next step be?

subtract 5x
add 7
add 9

Question

Choose the answer based on the most efficient method as presented in the lesson. 
If the first step in the solution of the equation -9 + x = 5x - 7 is "subtract x," then what should the next step be?

subtract 5x
add 7
add 9

peterg2001 · Answer

@haleyelizabeth2017

haleyelizabeth2017 · Answer

Same thing...
-9 + x = 5x - 7 
-9=4x-7
Which makes more sense:
0=4x+2 
or
-2=4x.