(x+5)+(x+10)+(x+15)+(x+20)=74
4x+50=74
4x=74-50
4x=24
x=24:4
x=6
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(x+5)+(x+10)+(x+15)+(x+20)=74
4x+50=74
4x=74-50
4x=24
x=24:4
x=6
(x+5)+(x+10)+(x+15)+(x+20)=74
(x+5) +(x+10) +(x+15)+(x+20)=74
( x + 5 ) + ( x + 10 ) + ( x + 15 ) + ( x + 20 ) = 74
[ x +5 ] + [ x + 10 ] + [x +15 ] + [ x + 20 ] = 74
(x*5)+(x*10)+(X*15)+(x*20)=74
tìm x:[x+5]+[x+10]+[x+15]+[x+20]=74
(x+5)+(x+10)+(x+15)+(x+20)=74.Tìm x
(x+5) + (x+10) + (x+15) + (x+20)=74.
Tìm x biết: (x+5) + (x+10) + (x+15) + (x+20)=74.