Answer:
-4
Step by step:
[tex]2 \times x \: + 2 \times 4 + 2 \times 3 = 6 \\ 2x \: + 8 + 6 = 6 \\ 2x = 6 - 8 - 6 \\ 2x \: = - 8 \\ x \: = - 4[/tex]
