If it's not what You are looking for type in the equation solver your own equation and let us solve it.
u+6.9=8.49
We move all terms to the left:
u+6.9-(8.49)=0
We add all the numbers together, and all the variables
u-1.59=0
We move all terms containing u to the left, all other terms to the right
u=1.59
| 2x+3x+4=4x+7 | | -7(x-2)+2x=-5(x+6) | | 8x+14+42+60=180 | | −2(x−5)=−3x−13 | | x+134=x+56 | | 3x²+39=0 | | –4−7m=–9m | | v-6.99=5.34 | | (5x-20)(x^2-3x-28)=0 | | -15–3w=4w—2w | | /−2(x−5)=−3x−13 | | -5x-3(x+2)=18 | | -15+7.5(2d-10=7.5 | | -1/6(-2x-6)-8=5 | | 11=5-(-10a+4) | | -7x+(-10)=11 | | 13x+7-2x-4=47 | | 5(-1/2x+7)+5x=15 | | (x-3)^3(x-1)(3x+4)^2=0 | | –9s+7=–8s | | -9x+3(2x+3)=-(-2x+19) | | 2x-1.5=3.5 | | 6g+8-15g-19=-38 | | x+85=20x+23 | | 3(4x-6)-2x+1=3-(3x-) | | 12a+6a+3-1=2(9a-9) | | 5x-7=5× | | 5o=15 | | -3.2–4.8x=-8.96 | | 7(c+8)=84 | | 5x+3(x-4)=60 | | 75=23+4b |