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68+e=90
We move all terms to the left:
68+e-(90)=0
We add all the numbers together, and all the variables
e-22=0
We move all terms containing e to the left, all other terms to the right
e=22
| 5x=60;x=13 | | t−18.8=6 | | 2/5(h+5)=h+6 | | t−188=6 | | 15=-25+2m | | 139.2+e=180 | | πr²(C/360)=9π×72/360 | | 25.5+k=90 | | -7=b+6 | | 4x+26=110 | | –10−2n=–4n+10 | | 13x+15+65+150=360 | | 67.3+k=180 | | 159x+1+104x+1+95x=360 | | 7x–40=2x+75 | | 35+k=90 | | 18+k=180 | | 6=-4+f | | ×=28x-12 | | 5x+23=8x-3 | | -26=-2z | | 2^x-3.8=0 | | 5/6h-7/12=-3/4h13/6 | | x+3(2x+7)=76 | | 56+k=90 | | 14.5+k=180 | | m²-16=m²+6m+12 | | 6.5=3.25+0.05x | | y-16=14 | | 75.1+n=90 | | (x+74)=(2x–1) | | 42.6+n=180 |