If it's not what You are looking for type in the equation solver your own equation and let us solve it.
4u+u+5u=20
We move all terms to the left:
4u+u+5u-(20)=0
We add all the numbers together, and all the variables
10u-20=0
We move all terms containing u to the left, all other terms to the right
10u=20
u=20/10
u=2
| z/8+9=5 | | 12-3c=18-5c | | 4+2p=10(53 p−2) | | 10(-2x+)+4=-19(x+) | | 2q+2q+3=19 | | 18=3(3x-69) | | k-7/9=2/3 | | 2/3x+3=1/3 | | -5c-c-10c-11c=5 | | -(9x-4)=-(7x+5) | | T=(18000-3000)*t/100 | | 10s-5s+4s-2s=7 | | 1/2x-4=1/4 | | 2.25+1.4x=8.21 | | 16x+24=x-6 | | -4(w+1)=24 | | 3.6=2x+-18 | | 18000=(18000-3000)*t/100 | | (x-7.2)(x+1.4)=0 | | 30=5k | | x^2-14x+49=44 | | 15x=8+2-4x | | x^2-6x+9=-28 | | 7(2x-13)=28(4) | | 0.1=x/30 | | 1.4x-3.5=9.6 | | 7/x=5/13 | | 7(2x-13)=28×4 | | 25x^2-10x+1=16 | | x^2+12x+36=-7 | | 2/3d+8=48 | | -2(3x+5)+5x+11=0 |