7 Liter Bucket | 5 Liter Bucket
7 | 0
3 | 4
3 | 0
0 | 3
7 | 3
6 | 4
6 | 0
2 | 4
2 | 0
0 | 2
7 | 2
5 | 4
5 | 0
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First, factor out the coefficient of x (in this case, 4) 4x+20----> 4(x+20/4) --> 4(x+5) then, go make yourself a sandwich.
(X-5)(X+4)=0 so X-5=0 -----X=5 and X=4=0 so X=-4 it factors to (X-5)(X+4) so X=5,-4
If you mean: -10x+4-10x+5 then it is 9-20x when simplified
5X + 5 = 25 subtract 5 from each side 5X + 5 - 5 = 25 - 5 5X = 20 divide both sides integers by 5 (5/5)X = 20/5 X = 4 -----------check in original equation by inserting 4 into X place 5(4) + 5 = 25 20 + 5 = 25 25 = 25 -----------checks
2x-6=4 6+4=2x 10=2x 10/2=x 5=x x=5