If it's not what You are looking for type in the equation solver your own equation and let us solve it.
42x=100
We move all terms to the left:
42x-(100)=0
We move all terms containing x to the left, all other terms to the right
42x=100
x=100/42
x=2+8/21
| x-20=20x | | 3x+11=10x=65 | | 70=35=10x+15 | | 4x+8=5x+7=90 | | x+6=2x+4=x-6 | | 2(w+3)−10=6(32−3w | | 10x+2x=108 | | 8-4x=5x | | z^2+256=0 | | X-5÷x-3=3/5 | | 3x(x-4)=9x | | 3x-1=2x+1=3x+1=x+5=4x-3=4x-5 | | 2+3x+1=6x+1 | | (x+7)+(x-10)=39 | | 8x+13=67 | | y+y+6=12 | | -k/8=4 | | (4y^2-5y+2)=(6y^2-5) | | X²+2x+1=25 | | 1.6=y+1.5 | | 8x+3=16x–1 | | 6x-4+10=12 | | n+81=9n−7 | | h+(-8)=-2 | | 5(1-3x)=20 | | (-3k)+23=(-2k)+17 | | 2t+6/5=4+-6 | | 4a+6=(-7a)-5 | | 0,19x=0,15 | | 3(x-2)=(-4)(x+5) | | 3(4-x)=10(x+5) | | 2(x+7)=(-x)-25 |