If it's not what You are looking for type in the equation solver your own equation and let us solve it.
12x+20+15x=-4
We move all terms to the left:
12x+20+15x-(-4)=0
We add all the numbers together, and all the variables
27x+24=0
We move all terms containing x to the left, all other terms to the right
27x=-24
x=-24/27
x=-8/9
| x-17(-4)=-56 | | 6x=3(x+4)-4 | | 18x+13=-1 | | 5x-4x=1/2 | | 3(s+45)=417 | | 12x+20=15x-4 | | X/4+x/7=2 | | F(x)=x^2×3x-1 | | 630=15(v+35) | | 17x+(-9)=-3 | | 8(3s+3)=96 | | 8+2x=5x+2 | | 22=y÷25 | | j+190/14=24 | | 36m+200=13,985 | | 9y+2y+5=180 | | 3w-1÷5+1=7w+2÷15 | | 2z-1/3-3z+1/5=1 | | 6=r/20-6 | | 22=y/25 | | 9y+2y+5=90 | | b/7+195=221 | | 2x+-5=55 | | 5^(2x)-3(5^(x))=40 | | 0.1(x-20)=2 | | 2=z-961/11 | | x/x-2+x=3x+15/4 | | -21n-58=n+646 | | 12/15=15/x | | -121-5x=-13x+15 | | 15=7(-1+2v)+2 | | 3=n/8-12 |