If X = 5, then 5X = 5 x 5 = 25
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5x=10 5x/5=10/5 x=2
5x + 4 = 10x - 5 10x - 5x = 4 + 5 5x = 9 x = 1.8
If X = 9 then 5X would = 5 x 9, which is 45.
you would first do 10+5x-5=0, then 5x+5=0 and is factored by 5(x+1)=0. or if you want to know what x equals with, x=-1
0.4^X=5x=?