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18-(-x=19
We move all terms to the left:
18-(-x-(19)=0
| 36=w/5+14 | | 7.5=4x+30 | | 5^x-8=26 | | x/4-14=23 | | 10n-8=-286 | | 0.1(m+9.8)−–9=9 | | -6d-6=-2d+4-3d | | 13+c=8 | | (5x-4)/6=11 | | w/25=26 | | m2=–34 | | 2x=16 | | 2.5m+5=65 | | x+3º=30º | | 11=k/11 | | 152=g+45 | | b/8=29 | | d2+36=0 | | 7n-3=333 | | 1/5(10x-15)=1/2(8x-18) | | 196=7q | | 7n-3=33 | | -8=r+3 | | d/7+29=36 | | 12x-2+3x+17=180 | | x4-2x3-8x2+10x+15=0 | | 16c=496 | | 7(z-86)=70 | | 23c=943 | | 56=9+t | | 7.07x+100=49.9849+10x | | 1/5(10x-15=1/2(8x-18) |