If it's not what You are looking for type in the equation solver your own equation and let us solve it.
100x+300=200=
We move all terms to the left:
100x+300-(200)=0
We add all the numbers together, and all the variables
100x+100=0
We move all terms containing x to the left, all other terms to the right
100x=-100
x=-100/100
x=-1
| c÷7=14 | | 10x+5=-11 | | 6y+1=-8+3y | | -33=-5+4v | | (36+2x)(30+2x)=1880 | | -1/3=x-(-1)/4 | | |5x+2|=12 | | 7-10x=6x+ | | -20h-8=20h+16 | | 5w+7=42 | | 9v-4=68 | | 11z+2=68 | | 3/5+x=-8/5 | | 5+4x=20-x | | x=√-7x+28 | | 3(3x−8)=4x+6. | | 6+4x=-x+8-2 | | 5x/9=40 | | −3(3x−2)−3x−1= −103 | | 3Гx=2 | | x+x-3=24 | | x^2(x^2-81)-64(x^2-81)=0 | | -1/8(3n+4)=10 | | 4x+x+5x=77 | | 3(3x−8)=4x+6 | | -11t=20 | | (36+2x)(30+2x)=800 | | 8/9k-2/3=5+3/7k | | 5/6=1/4+d | | 1/3(2m-4)=5 | | 7-75=-25+5d | | 2y=15y-46 |