If it's not what You are looking for type in the equation solver your own equation and let us solve it.
X+X+2+X+4=42
We move all terms to the left:
X+X+2+X+4-(42)=0
We add all the numbers together, and all the variables
3X-36=0
We move all terms containing X to the left, all other terms to the right
3X=36
X=36/3
X=12
| -0.5x+0=-8 | | 2X^3-3x^2-9x-1=0 | | 4x+33=12-3x | | -0.5*0+y=-8 | | x+12*0=8 | | 0+12y=8 | | 4/16=8/n | | (x+3)^2-100=0 | | 0.25x+3*0=2 | | 60/100=50/x | | 5(3c-1)-5=13c+6 | | (3,2x-10)/0,8=-48,5 | | 0.25*0+3y=2 | | 1/4*0+3y=2 | | (8x+1/7)-(2-4x)/3=(5x+4/14)+(7x/6) | | 4/7(x+1)=1/28(x+8) | | 4/7(x+1)=1/28(x+4) | | 2/7(x+1)=1/28(x+4) | | 1.1x=100 | | (-7x+28)-3=-66 | | 4x+2*0=18 | | 3x+x+2x=20 | | 4*0+2y=18 | | x-2*0=13 | | 3/7(m)=6 | | 12x-4(2x-10)=6-(x+3) | | 0-2y=-13 | | (-x)=|x-3| | | -2v+7=9 | | 25=1-x/50 | | -4x+2*0=2 | | 4x+2*0=2 |