If it's not what You are looking for type in the equation solver your own equation and let us solve it.
12x+15=13x+6
We move all terms to the left:
12x+15-(13x+6)=0
We get rid of parentheses
12x-13x-6+15=0
We add all the numbers together, and all the variables
-1x+9=0
We move all terms containing x to the left, all other terms to the right
-x=-9
x=-9/-1
x=+9
| 333^2*136=17*111*999*d | | (3x)^4=1296 | | 3-5x=2+5x | | -2x-2(-3x+6)=-52 | | 9e+4=−5e+14+13e=e | | 9w–3=6w–15 | | f/9+2=-7 | | a^2=3a+4 | | 13=5-4m | | 20=5/(10c) | | 7x-3(5x+2)=94 | | 14=n/9 | | x*0.15=130 | | -6(n+1)=-44-6n | | 6(1-4k)-6k=216 | | 5+2/3x=3/4 | | 7=4.7v-8.25-37.2v | | 4y-4y=8+3 | | 4(v-2)=7v+3-3(-5v-1) | | 6(y+3)=3y+39 | | 2a+3=4a=5 | | 5+10b=-45 | | r^2+4r=5 | | -8y+32=-4(y+1) | | |4x-1/5|8=0 | | -4x=2-1/2 | | 8(v+8)+8=128 | | 2+x=(x-3)2 | | -4(2n-5)=-10n-16 | | -16=5(x-5)-8x | | 11=-7u+4(u+2) | | -5b-b^2=-14 |