Question

(x+1) + ( x+2) + (x+3) + (x+4) + ( x+5)= 65

Answer 1

(x+1) + ( x+2) + (x+3) + (x+4) + ( x+5)= 65

(x+x+x+x+x)+(1+2+3+4+5)=65

x*5+15=65

x*5=65-15

x*5=50

x=10

Answer 2

<=>(x+x+x+x+x)+(1+2+3+4+5)=65

=>5x+15=65

=>5x=65-15

=>5x=50

=>x=50:5

=>x=10

Answer 3

=>x+1+x+2+x+3+x+4+x+5=65

=>(x+x+x+x+x)+(1+2+3+4+5)=65

=>5x+15=65

=>5x=50 tức là 65-15

=>x=10

Answer 4

=x+1+x+2+x+3+x+4+x+5=65

=>(x+x+x+x+x)+(1+2+3+4+5)=65

=5x+15=65

=>5x=65-15

=5x=55

=>x=55 chia 5

=>x=11

Answer 5

(x.5)+(1+2+3+4+5)=65

x.5+15=65

x.5=65-15

x.5=50

x=50:5

x=10

h cho minh nha