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I find that these types of equations arent to difficult to solve but i seem to be stuck. :mad: I know that a * 1/k is a/k but i dont know how to apply this to my problem. 16 = 4/5 * x if the problem was stated as 16 = 1/5 * x it would end up as x/5. So how do i convert 16 = 4/5 * x? Is it 4/5 * x = 5x + 4 / 5 ? Thanks for the help. :)
Yeah, some things:
1/5 * x = x/5 BECAUSE (x*1)/5 = x/5
similarly,
4/5 * x = 4x/5 BECAUSE (4*x)/5 = (4x)/5
So, if 16 = 4/5 * x
=> 4x/5 = 16
=> 4x = 16*5=80
=> x = 80/4 = 20
Also, if 4/5 * x = 16
=> 1/5 * x = 4 (divide by 4)
and you only have to use 1/5, which you have displayed how to do. :D
Ah ok. What was i thinking. :eek: Right. 4/5 * x = 4/5 * x/1 = 4x/5
Thanks. :)