If it's not what You are looking for type in the equation solver your own equation and let us solve it.
7x+13-12x=28
We move all terms to the left:
7x+13-12x-(28)=0
We add all the numbers together, and all the variables
-5x-15=0
We move all terms containing x to the left, all other terms to the right
-5x=15
x=15/-5
x=-3
| m–3m=14–4m | | 5h+2=h-6 | | 10(w-4)=4(w+40+4w | | 12-239=-5+6(-5x+3) | | 2u-23+2u-16=u+48 | | c+12=80 | | 4f-13f=-21-16f | | 3x-3+8=1-2x+6x | | P=3p-8 | | 2(a-7)+4=-(-4a-4) | | -x+2=5x-4 | | w/5+15=9 | | p=–4p−10 | | 3x+8=9x-20 | | 18+7x=44 | | -32=n-16 | | 36x=6(6x+1) | | x+32+80=4x+17 | | .7.4=n-2.6 | | 3x=7x=1 | | 4=y3+3 | | 3x-12+78=6x+13 | | 5-2/3x=11-2/3 | | 4x+4x+10-2=8x+6=4 | | b+6+3b=90 | | x-2/7=3/21 | | 10x+2=12x+2 | | 52y+6=14 | | 6x-1=50 | | -2(4x-2)=-4x+24 | | c+3c+14=10 | | 6x+13=3×-12+78 |