If it's not what You are looking for type in the equation solver your own equation and let us solve it.
y-21=6.4
We move all terms to the left:
y-21-(6.4)=0
We add all the numbers together, and all the variables
y-27.4=0
We move all terms containing y to the left, all other terms to the right
y=27.4
| (10x-65)+(3x-15)=180 | | 2x^2+81=0 | | 2x+4(x-3)=180 | | 1/4s=12 | | 24+(78-m)=36 | | 8e+8+9e-3=80 | | 8e+8+9e-8=80 | | 7e/12=3(e+6) | | 2y+(16-2y)=16 | | Y-1=5/3(x+2) | | 9x+4x+8-10x=23 | | 10x-12=8x-13 | | 6x-36=-66 | | 2(x-4)=3(2x+5) | | 0.5x^2-x+13=0 | | m/2=2m-5 | | 6^-x=1/126 | | x+x(0.175)=413597 | | 18=2k+12-8k | | X3+x9=6 | | 5^(x-1)=28 | | 10+15+6+10=x | | 6u-27.1=11.3 | | 6(-1x-1)=-18 | | 2x+16=118 | | 10x/7=100 | | -9x+8=-4(x-7) | | 3y+5(y+3)=-33 | | 45+y=6 | | 4.8=2.2^x | | 27*6x=8.25 | | 2*6x=8.25 |