If it's not what You are looking for type in the equation solver your own equation and let us solve it.
0.12(x+3.000)=4200
We move all terms to the left:
0.12(x+3.000)-(4200)=0
We add all the numbers together, and all the variables
0.12(x+3)-4200=0
We multiply parentheses
0.12x+0.36-4200=0
We add all the numbers together, and all the variables
0.12x-4199.64=0
We move all terms containing x to the left, all other terms to the right
0.12x=4199.64
x=4199.64/0.12
x=34997+9.0949470177293E-13/0.12
| 26=6(u-7)-8u | | -2(v+6)+6v=4(v=3) | | 2x-9=36 | | 6+v=8 | | 2x^2x=18 | | 2x^2=x=18 | | 2x+7+7=16 | | 2/3x+19=20 | | (X+18)2=x+25 | | 4(4x+6)=8(2x+3 | | -27=3(x-8) | | (h-3/5^2=1/2 | | 28=-2(4x+6) | | 2/3x+19=80 | | x^2*3.14=16 | | a/3+5(a-5)=5-2(a+7) | | 3x2 | | -0.53x+0.33x=4.6 | | 16=x^2*3.14 | | -2x-3x+6=4 | | 0.20p=320 | | 2x-1=x+7x-4 | | 3c^2-11c=4 | | 2x-8=12+6x | | -15x^2+150x-240=0 | | -7u/5=28 | | x−x^2+20=0 | | 48=8x-x^2=0 | | 4=-8+g | | ?x0.8=0.64 | | -8=4+r | | 4k-9=9 |