Respuesta :
Answer:
x=-120
Step-by-step explanation:
7x-130=110+9x
add 130 to both sides of the equation
7x-130+130=110+9x+130
Simplify
7x=9x+240
Subtract 9x from both sides
7x-9x=9x+240-9x
Simplify
-2x=240
divide both sides by -2
-2/-2=240/-2
simplify
x=-120
7x-130=110+9x
-7x -7x
-130=110+2x
-110 -110
-240=2x
2 2
-120=X
-7x -7x
-130=110+2x
-110 -110
-240=2x
2 2
-120=X