edensilver12
edensilver12
13-02-2017
Mathematics
contestada
what is x
2x -(x - 4)= 5
Respuesta :
Jedimaster13
Jedimaster13
13-02-2017
2x - x + 4 = 5
so, x = 1
Answer Link
apologiabiology
apologiabiology
13-02-2017
expand
distributive property
a(b+c)=ab+ac
so
-(x-4)=-1(x-4)=-1(x)-1(-4)=-x+4
now we has
2x-x+4=5
2x-1x+4=5
1x+4=5
minus 4 both sides
x+4-4=5-4
x+0=1
x=1
Answer Link
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