If it's not what You are looking for type in the equation solver your own equation and let us solve it.
11c^2+6c-9=11c^2-6c-9
We move all terms to the left:
11c^2+6c-9-(11c^2-6c-9)=0
We get rid of parentheses
11c^2-11c^2+6c+6c+9-9=0
We add all the numbers together, and all the variables
12c=0
c=0/12
c=0
| 5x-6.1=14.4 | | 1=6×+2-7x | | 3(y−13)=12 | | 25=f2 | | 11c^2+-6c-9=11c^2-6c-9 | | 5b-2+4b=5 | | 3x4=-11 | | x^2+13x-162=0 | | 3(30)-10+x=180 | | 2(8s+10)-4s=3(4s+2)-8 | | s^2+2s-33=0 | | -5x-30=-70 | | -12(v-11)=2v-4(1-5v) | | 2x+6x-300=3x-8x-500 | | 2x^2+7×+3=0 | | 3/4(n+1)=20 | | j8=10 | | (8x-4)+(7x+3)=180 | | 10x+8+23+7=180 | | 10–4x=7x-23 | | -19=k+5 | | 1/4(n+4)=4 | | 8t-8.8t=90 | | x^2+.5*x+1=0 | | F(x)=7x+19 | | (27+12)÷3=n | | 8v-4v=4v | | (8x-23)+(8x-23)+34=180 | | (x+23)+(5x-9)=180 | | -41/3=r-1/3 | | (8x-23)+(8x-23)34=180 | | 9n-3=19 |