If it's not what You are looking for type in the equation solver your own equation and let us solve it.
30+90=10x
We move all terms to the left:
30+90-(10x)=0
We add all the numbers together, and all the variables
-10x+120=0
We move all terms containing x to the left, all other terms to the right
-10x=-120
x=-120/-10
x=+12
| -3x+20=5-8x | | 8x²=32 | | 24-p66=4466 | | 2/5b+2-3/10b=5 | | 10=15-19*0.6^x | | -1=x+1=1 | | 5x^-15x=0 | | -3(3x+15)–(10+x)=35 | | .90*p=64.8 | | 8(1+n)=29+5n | | 81÷w=w | | 30+180=10x | | r^+2r+1=0 | | 4p+5p=10 | | 8=8(x−1)8=8(x−1) | | x–8=20 | | -30+9x=-0.5x | | 4n-2,3/4=-22,3/4 | | 6p-2-6p+8=1+3p-2p | | X-0.20x=504.80 | | 2/3+w/4=5/6-1/2 | | 10x-1=5x-8 | | 5(x−1)=−x+7(x+1) | | -30+9x=-0.5x|x-1|-2 | | -5x-34=14-4 | | -5n+3(n-1)=-3-2n | | 3x+14+2x-12=180 | | 9y+12=3y+48 | | 0=100-20n | | 17(j+1)=77 | | 3x+90+4x=139 | | m+22=77 |