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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