If it's not what You are looking for type in the equation solver your own equation and let us solve it.
42+2x=100
We move all terms to the left:
42+2x-(100)=0
We add all the numbers together, and all the variables
2x-58=0
We move all terms containing x to the left, all other terms to the right
2x=58
x=58/2
x=29
| 2.5*x+x=78 | | 95=(1.08+18x)/(0.06-x) | | 2x-2/3-9x-2/5=2 | | 8=5x/3-7 | | (3x-1)^=25 | | 6-9x=23 | | 3x-9-2x+5=6x-4x+7 | | 0.2x=128 | | 76-6x=64 | | 30/x-2=8 | | 12x-4(3x-5)=7 | | 2a+1=7+a | | (2.5)n=10 | | 13y-29=31-7y | | 30y=90 | | 22-3x=17-9x | | 5y-45=3y+15 | | x+15=3x-65 | | 2x-3(x+2)=5(3-2x) | | 7=4(2x-5) | | 540=45x12 | | 3=1.2^n | | 4x^2+3x-63=0 | | 2x+28=12x+3 | | 67.8x+492=7134+(-178.2x) | | 7134+(-178.2x)=3926.4 | | 6(x-5)=-60 | | 5(x+5)=-65 | | (2x+39)=(3x+11) | | H=-16t^2+45t+50 | | 3x+3/2=4x+4 | | 1(x+3)+8=-5(x-1) |