If it's not what You are looking for type in the equation solver your own equation and let us solve it.
15x+5x-15x+12=-18
We move all terms to the left:
15x+5x-15x+12-(-18)=0
We add all the numbers together, and all the variables
5x+30=0
We move all terms containing x to the left, all other terms to the right
5x=-30
x=-30/5
x=-6
| 16x-11x+x=6 | | -2x+10x-4x+6x=10 | | -9x+12x=15 | | 9x-8x+x=14 | | 14x+3x-16x=5 | | 6x-17x=11 | | 12x-20x=16 | | 16x-x-12x-2x=13 | | 19x+3x-18x-2x=14 | | 16x-7x+x+3x-12x=11 | | 10x+7+29+14=180 | | 14+2y=26 | | (25364-h)-2586=18191 | | 6x^2-53x+95=0 | | 70+30x=180 | | 50*4/5=x | | 90-2z=48 | | 88+7c=438 | | 5b+29=94 | | 6(x-3)=36-6x | | 1-9x=53 | | -3x-8=3x+8 | | -8x+3=-8x+3 | | 2.8-4.1d=1.9d+7.6 | | 2.8-4.1d=1.9+7.6 | | 9^(x+2)=2^(5x-4) | | d-3+5a=4a-10 | | 4m+5=25-2m | | 6(1x-1)-1x=-21 | | 3=g+22 | | -2(1x-5)-4=-22 | | 4.5-5.2m=1.8m+2.4 |