If it's not what You are looking for type in the equation solver your own equation and let us solve it.
2.8+z=-6
We move all terms to the left:
2.8+z-(-6)=0
We add all the numbers together, and all the variables
z+8.8=0
We move all terms containing z to the left, all other terms to the right
z=-8.8
| -4.9x^2-9x+500=0 | | 73+x+(x+11)=180 | | -35=-7/2y | | 117=4x-1-10 | | 0,7x=56000 | | 6+3x=2(-x+9)-28 | | 13(-8+c)=26 | | 5x+9=15-7x | | 5x-30+8-2x=x+2x-22 | | (3x+8)+x=90 | | 2a–19=11 | | -2a–19=11 | | q/13+13=15 | | 4(x-1)=6(-2x) | | 5+x=(-2)6 | | 2(x-5)=`14 | | (4x+3)=3x+8)+(8x-4) | | X4x+x=150 | | r-18.7=-6.8 | | r+16/5=9 | | 10x=11x=15 | | 5x+35=835 | | 2x+3/4=7/2 | | r/12+1=6 | | 5=-5q–10 | | r+4/4=1 | | 5/7d=-47 | | x+5(2)=6 | | 17+5x=2(−x+5)−21 | | 6x−30=15 | | 4x+14=76 | | 5n-2=-9n+12 |