Answer:
x=5
Step-by-step explanation:
x-3x can be simplied to -2x and 3-9 can be simplied to -6
-2x+4=-6
Substract 4 from both sides
-2x=-10
Divide both sides by -2
[tex]x=5[/tex]
[tex]x-3x+4=3-9\\x-3x+4=-6\\-2x+4=-6[/tex]
Subtract 4 from both sides
[tex]-2x+4-4=-6-4\\-2x=-10[/tex]
Multiply both sides by -1
[tex]2x=10[/tex]
Divide both sides by 2
