If it's not what You are looking for type in the equation solver your own equation and let us solve it.
7n-4=80
We move all terms to the left:
7n-4-(80)=0
We add all the numbers together, and all the variables
7n-84=0
We move all terms containing n to the left, all other terms to the right
7n=84
n=84/7
n=12
| a-(3a-2a-5/10)-2a-57/6=-5/7 | | 56x+40.3=2.5 | | 5(7y-20)+5(8y+16)=-4(8-2y)-9(3-9y) | | x+35+x=685 | | 8(2x-11)+13(5-7x)=2(8x-4)+5(9x-15) | | -9(2x+7)=5(7x+3) | | 0.4(x+2)=0.2(x-5) | | 2.7-x=6.5 | | x^2-9x+486=0 | | -4x+45=52 | | 123-11x=79 | | 63-5x=28. | | 102-x=100 | | 7(2x-5)=3(4x-10) | | H(x)=13.00+0.15x | | (2x+5)(x+3)=10 | | 9(x-2)-3(5x-5)=35 | | 7x+10-2x=-10 | | x=x*0.1-30000 | | 5^x.125.5^-1=30 | | x*x=6.4 | | 8+x=15.2 | | 11x=1.1 | | 15x=7x=4x | | 4+3(x+21)=5x-4 | | Z+3/2-z/3+2=2 | | 2y/3+1=9 | | X+40+3x20=160 | | -0.08x^2+1.6x+10=0 | | X+40+3x20=180 | | X+15/16=2x | | 10-4t=12 |