If it's not what You are looking for type in the equation solver your own equation and let us solve it.
10n-1-9n+2=13
We simplify the equation to the form, which is simple to understand
10n-1-9n+2=13
We move all terms containing n to the left and all other terms to the right.
+10n-9n=+13+1-2
We simplify left and right side of the equation.
+1n=+12
We divide both sides of the equation by 1 to get n.
n=12
| 7x+3x+20=90 | | 7=-3y-(-2y+2) | | 2(-2x+2)-7=9-7x | | 25x^9y^4/15x^6y^8 | | 260=x2/3 | | p=140-2q | | 7/5+3/5x=27/10+7/2x+1/2 | | -(-6+3)=z-3 | | -(-7k+2)=k-2 | | -7x^2-21x=14 | | -(-4p+2)=8p-5 | | -4(-3a+3)=-(6+8a)-4a | | 2p-2/6 | | -(7z+1)=-9+4 | | 7x(4x+6)=21 | | 21/w=-7 | | 145=x+2+21 | | 9x(5x+5)=27 | | 145=(x+2)+21 | | 1=-(1+10y)-8y | | -x^2+x=-2 | | 180-x=3.5(x) | | 2a^2-10=-23 | | -(-10n+1)=-5(1-6n)+7 | | -x^2+6=-2 | | 2x^2-10x-10.5=0 | | (1/5)(1/5)(1/5)(1/5)(1/5)(1/5) | | 3(x-2)+5(2x+3)=35 | | 6x+11-9x=16-18x+15-5 | | 3y-4=4y-11 | | -2-7q=-(2q-4) | | 4x-12-7x-42=-1 |