Nguyễn Thiên Phúc
Giới thiệu về bản thân
a) 3x-4=5+x b) 3(x-1)-7=5(x+2)
3x-x=9 3x-3 -7= 5x+10
2x=9 3x-5x=20
x=4,5 -2x =20
Vầy có nghiệm x=4,5 x =-10
Vầy có nghiệm x=-10
a) 3x-5=4 b) \(\dfrac{2x}{3}\)+\(\dfrac{3x-1}{6}\)=\(\dfrac{x}{2}\)
3x=9 \(\dfrac{4x}{6}\)+\(\dfrac{3x-1}{6}\)=\(\dfrac{3x}{6}\)
x=3 4x+3x-1=3x
Vầy x=3 7x-3x=1
4x=1
x=0,25
Vầy x=0,25
a) 3x-5=4 b) \(\dfrac{2x}{3}\)+\(\dfrac{3x-1}{6}\)=\(\dfrac{x}{2}\)
3x=9 \(\dfrac{4x}{6}\)+\(\dfrac{3x-1}{6}\)=\(\dfrac{3x}{6}\)
x=3 4x+3x-1=3x
Vầy x=3 7x-3x=1
4x=1
x=0,25
Vầy x=0,25
a) 3x-5=4 b) \(\dfrac{2x}{3}\)+\(\dfrac{3x-1}{6}\)=\(\dfrac{x}{2}\)
3x=9 \(\dfrac{4x}{6}\)+\(\dfrac{3x-1}{6}\)=\(\dfrac{3x}{6}\)
x=3 4x+3x-1=3x
Vầy x=3 7x-3x=1
4x=1
x=0,25
Vầy x=0,25
\(\dfrac{8}{19}\)
a) 2x=7+x b) \(\dfrac{x-3}{5}\)+\(\dfrac{1+2x}{3}\)=6
2x-x=7 \(\dfrac{3x-9}{15}\)+\(\dfrac{5+10x}{15}\)=\(\dfrac{90}{15}\)
x=7 3x-9+5+10x=90
Vầy có nghiệm x=7 3x+10x=94
13x=94
x=7,230…
Vầy x=7,230