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28+x=43
We move all terms to the left:
28+x-(43)=0
We add all the numbers together, and all the variables
x-15=0
We move all terms containing x to the left, all other terms to the right
x=15
| 7x=583 | | 13x+20=-2x+50 | | 7x-1=583 | | 7x-2=583 | | 7x-17=583 | | A2+b2=96 | | (7x-132)=583 | | 54(5p+15)=18+2p | | 7x-13=583 | | 5/4(5p+15)=18+2p | | 7x-14=583 | | 7x-46=583 | | 7x-30=583 | | 7x-36=583 | | -45+4x=91+12x | | 7x-58=583 | | 7x+20=583 | | 6x+72=72 | | 7x+30=583 | | 7x+40=583 | | 10x-2=4x+4- | | 7x-132=583 | | =9h+15 | | 7x-10=583 | | 7x-20=583 | | 7x-12=583 | | X+2x+17=19 | | 7x-132=406 | | 4m/3=1 | | (583x+132)=406 | | (7x+406)=583 | | (7x+406)=132 |