If you mean: -4+3+2s = 15 then s = 8
2s-4 equals 2(s-2). You can find the answer by factoring two out of both numbers.
4 (apex lol)
4 (apex lol)
If you mean: 4(2s-1) = 7s+12 then the value of s works out as 16
you do 2 + 2
22+22
25 of them
two
2000
310.
There are four 2s in a standard deck of playing cards.