Combine like terms
2x^2 + -7x^2 = -5x^2
-9x + 4x = -5x
3 + -2 = 1
put back together
-5x^2 - 5x +1
1/8 for the first one and second one is 23 times 6
-3.3=
Multiply both sides of the equation by 6 to isolate x.
-19.8=x
Your answer is -19.8.
I hope this helps :)