If it's not what You are looking for type in the equation solver your own equation and let us solve it.
x+4.2=9.1
We move all terms to the left:
x+4.2-(9.1)=0
We add all the numbers together, and all the variables
x-4.9=0
We move all terms containing x to the left, all other terms to the right
x=4.9
| 64=2x×6 | | 7.3t.22=2.1t-22 | | 3x+7+2x-4=200 | | 4(x+3)-(2x+8)=28 | | 267=-w+7 | | 4(x+3)2x+8=28 | | 172-y=105 | | -10e+15=95 | | 86-w=201 | | 4.75-j=0.602 | | 16=8x-5x^2 | | x2+22x-121=0 | | 156x=180 | | 3w+7=9w | | +9/7x=+1/14 | | 6+5(n–1)–2(3n–1)=0 | | 14x2-11x-15=0 | | 4w+8=2 | | 8b+12=4 | | x+3=3x=1 | | 12-7x-8=-21 | | 3p+11=45 | | 10x-15=80 | | 4/9x=84 | | 1-0,01x=0 | | 6+5(n–1)=6n–2 | | 4x-9+2x+5=90 | | 5×x-100=0 | | 100=2x×x | | -x-15=3x+1 | | 3x-5+2x+11=90 | | x-20=5x+16 |