a) x +60+40 =400
x = 400-40-60
x =300
b) (x+25) + 50 = 100:2 +30
(x+25) +50 = 50+30=80
x+25 = 80-50=30
x =30-25
x = 5
a.x+60+40=200
x+100=200
x=200-100
x=100
b.x+25+50=100:2+30
x+75=50+30
x+75=80
x=80-75
x=5
mk nhanh nhất
a) x + 100 = 200
x = 200 - 100
x = 100
b) x + 25 + 50 = 50 + 30
x + 75 = 80
x = 80 - 75
x = 5
a)\(x+60+40=200\)
\(x+100=200\)
\(x=200-100\)
\(x=100\)
b)\(\left(x+25\right)+50=100:2+30\)
\(\left(x+25\right)+50=50+30\)
\(\left(x+25\right)+50=80\)
\(x+25=80-50\)
\(x+25=30\)
\(x=30-25\)
\(x=5\)
Tk mk nhé!Thank you!
\(a,x+60+40=200\)
\(x+100=200\)
\(x=200-100\)
\(x=100\)
\(b,\left(x+25\right)+50=100:2+30\)
\(x+25+50=50+30\)
\(x+75=80\)
\(x=80-75\)
\(x=5\)
a)x+60+40=200
x+60=200-40
x+60=160
x=160-60
x=100
b)(x+25)+50=100:2+30
(x+25)+50=50+30
(x+25)+50=80
x+25=80-50
x+25=30
x=30-25
x=5
