Tim x
18_ 6 ÷ x = 12
2*x+1/2*x+6*x+1/6*x+12*x+1/12*x+20*x+1/20*x=5.Tim x
Tim x: 12+x*6=36
×÷×+12×6=36
×+12×6=36
×+12=36-6
×+12=30
×=30-12
×=18
Nhớ ✔ cho mình nha
Tim x
-12/x=6/-8
\(\frac{-12}{x}=\frac{6}{-8}\)
=>\(\left(-12\right).\left(-8\right)=6x\)
=>\(96=6x\)
=>\(x=96:6=16\)
\(\frac{-12}{x}=\frac{6}{-8}\)
\(\left(-12\right).\left(-8\right)=6.x\)
\(96=6.x\)
\(x=\frac{96}{6}\)
\(x=16\)
\(\frac{-12}{x}=\frac{6}{-8}\)
\(\Rightarrow x.6=-12.\left(-8\right)\)
\(\Rightarrow x.6=96\)
\(\Rightarrow x=96:6\)
\(\Rightarrow x=16\)
tim x
-1/6-x=5/12+-2/3
\(\frac{-1}{6}-x=\frac{5}{12}+\frac{-2}{3}\)
\(=>\frac{-1}{6}-x=\frac{5}{12}+\frac{-8}{12}\)
\(=>\frac{-1}{6}-x=\frac{-3}{12}\)
\(=>x=\frac{-1}{6}-\frac{-1}{4}\)
\(=>x=\frac{-1}{6}+\frac{1}{4}\)
\(=>x=\frac{-2}{12}+\frac{3}{12}\)
\(=>x=\frac{1}{12}\)
Tim x
(-15/12)+x+(3/7)=(6/5).x-(1/2)
\(-\frac{15}{12}+x+\frac{3}{7}=\frac{6}{5}x-\frac{1}{2}\)
<=>\(x-\frac{6}{5}x=-\frac{1}{2}+\frac{15}{12}-\frac{3}{7}\)
<=>\(-\frac{1}{5}x=\frac{9}{28}\)
<=>\(x=\frac{9}{28}:\left(-\frac{1}{5}\right)\)
<=>\(x=-\frac{45}{28}\)
Tim x, y biet:
a) x/15=6/y=3/5
b) 6/14=x/-21=-12/y
a, Quy đồng mẫu 2 ps x/15 và 3/5 để tim x
để tìm y, quy đồng tử của 6/y với 1 trong 2 ps kia
b,Rút gọn 6/14 rồi làm giống phần a
(x + 2) + ( x + 4) + ( x + 6) + ( x + 8 ) + ( x + 10 ) + (X+ 12) = 192
Tim x
giúp mình
Mình cần gấp
x+ 2 + x+ 4 + x +6 + x + 8 + x + 10 + x + 12 = 192
6x + 2+ 4 + 6 + 8 + 10 + 12 = 192
6x+ 42 = 192
6x= 192 - 42
6x= 150
x = 150 : 6
x= 25
x+2+x+4+x+6+x+8+x+10+x+12= 192
<=> 6x + 42 = 192
<=> 6x = 150
<=> x = 25
x+ 2 + x+ 4 + x +6 + x + 8 + x + 10 + x + 12 = 192
6x + 2+ 4 + 6 + 8 + 10 + 12 = 192
6x+ 42 = 192
6x= 192 - 42
6x= 150
x = 150 : 6
x= 25
tim x biet 6+2.x=12+(-5)
b)(-90)-(/x/+10)+100=0
a) 6 + 2x = 12 +(-5)
2x = 7 -6
x = 1/2
b) -90 - |x| -10 + 100 = 0
- |x| =0
x =0
tim x : \(6\times x-12=9\times x+15\)
6.x = 9.x+15+12
6.x = 9.x+27
27 = 9.x-6.x
27 = 3.x
x = 27 : 3
x = 9
Vậy x = 9
Tk mk nha