\(15+4\left(x-2\right)=95\)
\(4\left(x-2\right)=95-15\)
\(4\left(x-2\right)=80\)
\(x-2=20\)
\(x=22\)
________________________
\(20-\left(x+14\right)=5\)
\(x+14=20-5\)
\(x+14=15\)
\(x=15-14\)
\(x=1\)
________________________
\(24+3\left(5-x\right)=27\)
\(3\left(5-x\right)=27-24\)
\(3\left(5-x\right)=3\)
\(5-x=1\)
\(x=4\)
\(a,4\left(x-2\right)=95-15\\ 4\left(x-2\right)=80\\ x-2=80:2\\ x-2=20\\ x=20+2\\ x=22\\ b,x+14=20-5\\ x+14=15\\ x=15-14\\ x=1\\ c,3\left(5-x\right)=27-24\\ 3\left(5-x\right)=3\\ \left(5-x\right)=3:3\\ 5-x=1\\ x=5-1\\ x=4\)
a,4.(x-2)=95-15
=>4.(x-2)=80
=>x-2=80:4
=>x-2=20
=>x=20+2
=>x=22
Vậy x=22
b,20-(x+14)=5
=>x+14=20-5
=>x+14=15
=>x=15-14
=>x=1
Vậy x=1
c,24+3.(5-x)=27
=>3.(5-x)=27-24
=>3.(5-x)=3
=>5-x=3:3
=>5-x=1
=>x=5-1
=>x=4
Vậy x=4
≤ x < 40}
Céc pác giúp iem bài 6 zới, iem cẻm ưn céc pác rất nhiều ;-;